BUS-210 · Lesson 6 of 12 · 37 min

Torts and negligence

A tort is a civil wrong, other than a breach of contract, for which the law gives a remedy, usually damages. Contract duties arise from agreement; tort duties are imposed by law on everyone. A business can commit torts through its employees and products, and it can be the victim of torts committed by competitors, customers and others. Tort claims are among the largest legal risks most businesses face: a single serious injury on business premises or caused by a delivery vehicle can produce a claim worth millions. This lesson covers intentional torts, the tort of negligence, liability for premises, professional negligence and vicarious liability. Lesson 7 covers torts aimed at business interests and product liability.

Intentional torts

Intentional torts involve deliberate conduct, although the defendant need not intend harm. Several arise in everyday business. Battery is intentional, harmful or offensive physical contact without consent; assault is causing someone to fear imminent contact. False imprisonment is intentionally confining a person without lawful authority, which is a real risk when store staff detain suspected shoplifters. Trespass to land is entering or placing things on land without permission. Conversion is wrongfully dealing with another's goods, such as refusing to return them or selling them. Nuisance is an unreasonable interference with a neighbor's use and enjoyment of land, such as noise, odors, vibration or dust from a business operation.

Most states give merchants a shopkeeper's privilege: a merchant who has reasonable grounds to believe a person has shoplifted may detain the person in a reasonable manner and for a reasonable time to investigate. Detentions that are based on weak suspicion, last too long, involve excessive force or humiliation, or continue after the suspicion is dispelled expose the store to damages for false imprisonment, assault, battery and defamation, sometimes with punitive damages. Many retailers therefore train staff to observe and report rather than detain.

The tort of negligence

Negligence is the most important tort for business. It covers careless, rather than deliberate, conduct that causes harm. The modern law of negligence grew from Donoghue v. Stevenson (1932), in which a woman became ill after drinking ginger beer from an opaque bottle that allegedly contained the remains of a decomposed snail. She had no contract with the manufacturer, because her friend bought the drink. The House of Lords held that the manufacturer owed her a duty of care, because Lord Atkin's neighbor principle requires people to take reasonable care to avoid acts or omissions that they can reasonably foresee would be likely to injure persons so closely and directly affected that they ought to have them in contemplation.

A plaintiff in an American negligence action must generally prove four or five elements by a preponderance of the evidence: the defendant owed a duty of care, the defendant breached it by failing to act as a reasonable person would, the breach was a cause in fact of the harm, the breach was a proximate (legal) cause of the harm, and the plaintiff suffered actual damages. Negligence is state common law, so details vary from state to state, and the Restatement (Third) of Torts is influential.

A row of five linked boxes: duty, breach, cause in fact (but for), proximate cause (foreseeable harm to a foreseeable plaintiff) and damages. A note below says the defendant may raise defenses: comparative or contributory negligence, assumption of risk and statutes of limitations.
The elements of negligence in American law.

Duty. Everyone owes a general duty to act with reasonable care to avoid foreseeable harm to others. Courts limit duty in special categories, such as failures to act (there is generally no duty to rescue a stranger unless a special relationship exists, as between a business and its customers), purely economic losses and emotional distress without physical injury. In Palsgraf v. Long Island Railroad Co. (1928), railway guards helped a passenger board a moving train and dislodged a package of fireworks, which exploded; the shock allegedly knocked over scales at the far end of the platform, injuring Mrs. Palsgraf. Judge Cardozo held that the railway owed her no duty because no harm to her was foreseeable from the guards' conduct: duty is owed to foreseeable plaintiffs.

Standard of care. The defendant must act as a reasonable person would in the circumstances. Courts consider the likelihood of harm, the severity of potential harm, the cost of precautions and the social value of the activity. Industry customs and regulatory standards are evidence of reasonable care but not conclusive: complying with a safety regulation does not automatically show the defendant was careful, and breaching a statute is evidence of negligence. Professionals are held to the standard of a reasonably competent member of the profession, and people who hold themselves out as having special skills must meet that higher standard.

One way to think about the standard is the Hand formula, from Judge Learned Hand's opinion in United States v. Carroll Towing Co. (1947): a defendant is negligent if the burden of a precaution (B) is less than the probability of the harm (P) multiplied by the gravity of the loss (L). Canadian and American courts do not apply the formula mechanically, and it is hard to quantify human injury, but it captures how courts weigh risk against the cost of avoiding it, and it is a useful tool for business risk decisions.

\[\text{Negligent if } B < P \times L\]

Worked problem

Using the Hand formula to evaluate a precaution

A grocery chain with 40 stores considers installing anti-slip mats and a mandatory 30-minute floor inspection schedule in its produce aisles. The cost is about $3,000 per store per year, $120,000 in total. Past records suggest that, without the precautions, about 12 serious slip injuries a year occur across the chain, each costing about $60,000 on average in damages and legal costs. The precautions are expected to prevent about 75 % of these injuries. Should the chain adopt them?

Show solution
  1. Expected annual loss without precautions = 12 × $60,000 = $720,000.
  2. Expected loss prevented = 75 % × $720,000 = $540,000 (this is P × L for the risk the precaution addresses).
  3. Burden B = $120,000.
  4. B ($120,000) is far less than P × L ($540,000), so failing to take the precautions would likely be found negligent.
  5. The chain also gains intangible benefits: fewer injured customers, lower insurance premiums and better reputation.

Answer: The precautions are clearly justified. A court reviewing a slip-and-fall claim would be unimpressed by a business that skipped a cheap precaution against a known risk. Recording inspections also provides evidence of reasonable care.

Causation. The plaintiff must show cause in fact, usually that the harm would not have occurred but for the defendant's conduct; where several causes combine, courts ask whether the defendant's conduct was a substantial factor. The plaintiff must also show proximate cause: the harm must be a foreseeable result of the risk that made the conduct negligent, without a superseding intervening cause. Under the eggshell plaintiff rule, once some harm is foreseeable, a defendant takes the plaintiff as it finds them and is liable for the full extent of injury even if it is unusually severe because of a pre-existing condition. Where the plaintiff cannot prove exactly what happened but the accident is of a kind that ordinarily does not occur without negligence and the defendant controlled the instrument, the doctrine of res ipsa loquitur (the thing speaks for itself) lets the jury infer negligence.

Worked problem

Analyzing a negligence claim

A customer at a Kansas hardware store is hit by a box of tiles that falls from a high shelf when an employee pulls a pallet from the shelf beside it without securing the load. The customer suffers a fractured wrist and loses six weeks of work. The store says customers should keep away from employees moving stock. Analyze the claim.

Show solution
  1. Duty: a store owes business invitees a duty of reasonable care to keep the premises safe and to conduct its operations carefully.
  2. Breach: a reasonable retailer would secure loads, block off aisles while moving stock overhead and train employees. Failing to secure the load is a breach.
  3. Cause in fact: but for the unsecured pallet move, the box would not have fallen.
  4. Proximate cause: injury to a nearby customer from falling stock is the foreseeable result of the risk.
  5. Damages: medical costs, lost wages and pain and suffering.
  6. Defenses: Kansas applies modified comparative fault (a plaintiff recovers only if less at fault than the defendants), and there is no evidence the customer ignored a barrier or warning.

Answer: The store is very likely liable, and its liability insurer will usually handle the claim. The real management lesson is in prevention: procedures for overhead stock movement and training.

Defenses to negligence

Most states use comparative negligence to reduce a plaintiff's recovery by its share of fault. In pure comparative negligence states, such as California and New York, a plaintiff who is 70 % at fault still recovers 30 % of its damages. In modified comparative negligence states, the majority, a plaintiff recovers only if its fault is less than the defendant's (50 % bar) or not greater than the defendant's (51 % bar). A few jurisdictions, Alabama, Maryland, North Carolina, Virginia and the District of Columbia, keep the harsh rule of contributory negligence, under which any fault by the plaintiff bars recovery. Assumption of risk can be express, such as a signed waiver, which courts enforce if clear and not against public policy, or implied, where the plaintiff knowingly encountered an inherent risk, such as being hit by a ball at a baseball game. States differ on joint and several liability; many have limited it so that defendants pay only their share of non-economic damages.

Worked problem

Apportioning fault

A cyclist is hit by a delivery van that ran a stop sign. The cyclist was not wearing a helmet, and a jury finds the head injury would have been less severe with one. Damages are assessed at $400,000. The jury apportions fault 85 % to the van driver and 15 % to the cyclist. The van driver was employed by a courier company. Calculate the recovery under pure comparative negligence, modified comparative negligence and contributory negligence, and identify who pays.

Show solution
  1. Pure comparative negligence: $400,000 × 0.85 = $340,000.
  2. Modified comparative negligence (50 % or 51 % bar): the cyclist's 15 % is below either threshold, so the recovery is also $340,000.
  3. Contributory negligence (for example in Virginia or Maryland): the cyclist's 15 % fault would bar recovery entirely, although some courts treat failure to wear a helmet as irrelevant to fault for the collision itself.
  4. The courier company is vicariously liable for its employee's negligence within the scope of employment; in practice its automobile insurer pays.

Answer: The cyclist recovers $340,000 in most states but possibly nothing in a contributory negligence jurisdiction, which is why the governing state's law matters so much.

Premises liability

Owners and occupiers of land owe duties to entrants that, in many states, depend on the entrant's status. Invitees, including business customers, are owed reasonable care, including inspecting for and fixing or warning of dangers the owner knows of or should discover. Licensees, such as social guests, are owed a warning of known dangers. Trespassers are generally owed only a duty not to injure them willfully or wantonly, with greater protection for children under the attractive nuisance doctrine. Some states, following Rowland v. Christian (California, 1968), have replaced the categories with a single standard of reasonable care. In slip-and-fall cases, the plaintiff typically must show that the business created the hazard or had actual or constructive notice of it, meaning it existed long enough that reasonable inspection would have found it, which is why inspection logs matter so much.

Common premises hazards, precautions and records.
HazardReasonable precautionEvidence to keep
Spills and wet floorsRegular sweeps, warning cones, mats at entrancesInspection logs with times and initials
Ice and snowContracted clearing, salting, monitoring forecastsSnow-clearing contract and service records
Falling stockSecure loads; close aisles during overhead workTraining records and procedures
Poor lighting and trip hazardsMaintenance schedule, repairs, visible markingsWork orders and repair invoices
Crowds and securityStaffing, crowd control, security camerasIncident reports and security plans

Professional negligence and negligent misstatement

Professionals such as accountants, engineers, lawyers, architects and financial advisors owe their clients duties in both contract and tort. Liability to third parties for negligent misrepresentation causing purely economic loss is limited. In Ultramares Corp. v. Touche (1931), Judge Cardozo held that auditors were not liable to a lender that relied on a negligent audit, warning of liability in an indeterminate amount for an indeterminate time to an indeterminate class. States now follow one of three approaches: the strict privity or near-privity approach of New York, the Restatement (Second) of Torts section 552 approach used by most states, which extends liability to a limited group of persons the professional knows will rely on the information for a particular transaction, and a broader foreseeability approach used by a few states. Securities laws add separate statutory liability for misstatements in offering documents and public filings.

Worked problem

Is the consultant liable to a third party?

Juniper Valuations prepares a valuation of Lakeshore Marinas Inc. at the request of Lakeshore's owner, knowing it will be shown to a specific buyer, Coastline Holdings, which is negotiating to buy the company. The report carelessly overstates the marina's annual revenue by $1.2 million because of a spreadsheet error. Coastline relies on the report and pays $3 million more than the company is worth. Juniper's engagement letter with Lakeshore says the report is for "the client and prospective purchasers". Can Coastline sue Juniper?

Show solution
  1. Under the Restatement section 552 approach, Juniper is liable to a limited group of persons it intends or knows will receive the information, for a transaction it intends or knows the information will influence.
  2. Juniper knew the report would go to Coastline for the purchase, and its engagement letter mentions prospective purchasers.
  3. The revenue overstatement was negligent, Coastline justifiably relied on it and suffered loss.
  4. Even in a near-privity state such as New York, the result may be the same, because Juniper knew the specific party and purpose and its conduct linked it to Coastline.
  5. Coastline probably has a claim, subject to any clear disclaimer of third-party reliance.

Answer: Professionals manage this risk through engagement letters, reliance letters that define who may rely, disclaimers and professional liability insurance. Buyers should obtain reliance letters before relying on reports commissioned by the seller.

Vicarious liability

Under the doctrine of respondeat superior (let the master answer), an employer is vicariously liable for torts committed by employees within the scope of employment, even if the employer itself was not at fault. Conduct is within the scope if it is the kind of work the employee was hired to do, occurs substantially within authorized time and space limits and is motivated at least in part by a purpose to serve the employer. A minor detour on a delivery route is usually within the scope; a frolic of the employee's own is not. Intentional torts are within the scope if they are connected to the job, such as a bouncer's excessive force. Employers are not generally liable for independent contractors, which is one reason worker classification (lesson 10) matters. An employer may also be directly liable for negligent hiring, retention, training or supervision.

Applying vicarious liability.
SituationEmployer likely liable?Why
A delivery driver rear-ends a car while making deliveriesYesNegligence while doing the job
A driver detours ten minutes to pick up lunch and causes a crashUsually yesA minor deviation remains within the course of employment
An employee uses a company van on a weekend to move house without permission and crashesUsually noA frolic of the employee's own, though owner liability statutes may still apply to the vehicle
A security guard uses excessive force on a shopperUsually yesThe wrong is closely connected to the job the employer created
An independent contractor painter damages a client's propertyUsually noNo employment relationship, unless the employer was itself negligent in selecting the contractor

Damages in tort

Tort damages aim to restore the plaintiff to the position it would have been in had the tort not occurred. Economic damages cover past and future lost earnings, medical costs and property damage; non-economic damages compensate for pain, suffering and loss of enjoyment of life; and punitive damages may be awarded for malicious, oppressive or recklessly indifferent conduct, subject to due process limits. Juries set many awards, which makes outcomes less predictable than in countries where judges decide most cases. Many states have enacted tort reforms, such as caps on non-economic or punitive damages, especially in medical malpractice cases, and limits on joint and several liability. Workers' compensation statutes make no-fault benefits the exclusive remedy against the employer for most workplace injuries, and about a dozen states use no-fault automobile insurance that limits lawsuits for minor injuries.

Common mistakes

  • MistakeDetaining a suspected shoplifter on a hunch.

    InsteadDetain only on reasonable grounds, briefly and reasonably, or train staff to observe and report.

  • MistakeTreating regulatory compliance as proof of reasonable care.

    InsteadCompliance is evidence, not a complete defense; ask what a reasonable business would do about known risks.

  • MistakeFailing to record inspections and maintenance.

    InsteadKeep logs, work orders and training records; they are the main evidence of reasonable care in premises claims.

  • MistakeAssuming a valuation or audit can only lead to claims by the client.

    InsteadDefine who may rely on reports through engagement and reliance letters, and carry professional liability insurance.

  • MistakeAssuming the business is not responsible for what employees do on the job.

    InsteadEmployers are vicariously liable for employees' torts in the course of employment; hire, train and supervise carefully and insure.

Summary and key terms

  • A tort is a civil wrong imposed by law; intentional torts include battery, false imprisonment, trespass, conversion and nuisance.
  • Negligence requires duty, breach, cause in fact, proximate cause and damages (Palsgraf).
  • The standard of care weighs likelihood and severity of harm against the cost of precautions, as in the Hand formula.
  • Most states use pure or modified comparative negligence; a few keep contributory negligence.
  • Premises duties depend on entrant status in many states; notice of hazards is central in slip-and-fall cases.
  • Professionals can be liable to third parties for negligent misstatement within limits that avoid indeterminate liability.
  • Employers are vicariously liable for employees' torts in the course of employment.
  • Juries set many awards; tort reform caps vary by state; workers' compensation is the exclusive remedy for most workplace injuries.
Tort
A civil wrong, other than breach of contract, for which the law gives a remedy.
Negligence
Careless conduct that breaches a duty of care and causes foreseeable harm.
Duty of care
A legal obligation to take reasonable care to avoid harming others.
Standard of care
The level of care a reasonable person would exercise in the circumstances.
Hand formula
The idea that a precaution is required if its burden is less than the probability times the gravity of harm.
Negligent misstatement
A careless statement that causes economic loss to someone who reasonably relied on it.
Vicarious liability
Liability of one party, such as an employer, for the torts of another, such as an employee.
Proximate cause
The requirement that harm be a foreseeable result of the risk that made the conduct negligent.
Comparative negligence
A system that reduces a plaintiff's damages by its share of fault.
Respondeat superior
The doctrine making employers liable for employees' torts within the scope of employment.

Practice problems

Work each problem on paper first, then reveal the answer to check.

  1. Distinguish an intentional tort from negligence.

    Show answer

    An intentional tort involves deliberate conduct; negligence involves careless conduct.

  2. List the elements of negligence in American law.

    Show answer

    Duty, breach, cause in fact, proximate cause and damages.

  3. A precaution costs $20,000; it would prevent a 5 % chance of a $1 million loss. Does the Hand formula suggest it is required?

    Show answer

    Yes; P × L = $50,000, which exceeds B = $20,000.

  4. What did Palsgraf decide about duty?

    Show answer

    Duty is owed only to foreseeable plaintiffs.

  5. A plaintiff with $200,000 damages is found 30 % at fault. What does it recover in a jurisdiction that apportions fault?

    Show answer

    $140,000.

  6. What must a slip-and-fall plaintiff usually show about the hazard?

    Show answer

    That the business created it or had actual or constructive notice of it.

  7. What is the Restatement section 552 approach to accountants' liability?

    Show answer

    Liability to a limited group the professional knows will rely on the information for a particular transaction.

  8. Is an employer liable for a delivery driver's crash during a short lunch detour?

    Show answer

    Usually yes; a minor deviation is still within the course of employment.

  9. Why are American tort awards less predictable than in many countries?

    Show answer

    Juries set many awards, and caps vary by state.

  10. Portfolio task: walk through a business premises you know and list three hazards, precautions and the records you would keep.

    Show answer

    Answers vary; a good answer links each hazard to a precaution and a record that proves reasonable care.

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