8.1 Negligence, Torts, and Legal Liability
Key Takeaways
- Legal liability arises from torts, contracts, or statute; liability insurance (e.g., ISO CGL form CG 00 01 04 13, Homeowners HO-3 Section II) responds chiefly to negligence-based torts, not intentional acts.
- Negligence has FOUR elements — Duty, Breach, Proximate Cause, and Damages (memory aid DBCD) — and the plaintiff must prove every one.
- Torts split into intentional (assault, libel, trespass), negligence (the bulk of claims), and absolute/strict liability (abnormally dangerous activities, defective products).
- The 'reasonably prudent person' standard defines the duty of care; a higher standard applies to professionals and common carriers.
- Liability policies pay damages the insured is 'legally obligated to pay,' so an exam answer hinges on whether all four negligence elements are met.
Why Liability Concepts Drive the Exam
Nearly every casualty claim — auto bodily injury, slip-and-fall, products, professional malpractice — turns on legal liability. A liability policy promises to pay sums the insured becomes legally obligated to pay as damages. If the insured is not legally liable, the policy owes only defense (and only while a covered allegation is pending). Mastering the source of liability and the four negligence elements unlocks roughly a quarter of the national P&C question pool.
Three Sources of Legal Liability
- Tort liability — a civil wrong (other than breach of contract) for which the law allows a remedy. This is the core of casualty insurance.
- Contractual liability — obligations the insured assumes by agreement (a lease, a hold-harmless clause). The ISO CGL CG 00 01 04 13 insures this only as a covered 'insured contract.'
- Statutory liability — imposed by law regardless of fault, such as workers compensation benefits or dram-shop statutes.
The Three Classes of Torts
| Tort class | Mental state | Typical examples | Insurability |
|---|---|---|---|
| Intentional | Deliberate act | Assault, battery, libel, slander, trespass, false arrest | Generally excluded (expected/intended); some personal & advertising injury offenses are an exception |
| Negligence | Carelessness | Auto accident, wet-floor fall, failure to maintain | Core of liability coverage |
| Absolute / strict liability | None required | Blasting, keeping wild animals, defective products | Covered, but no fault need be shown |
The Reasonably Prudent Person
Duty of care is measured against the reasonably prudent person acting under the same circumstances. Professionals (doctors, agents, accountants) are held to the standard of others in their profession, and common carriers owe the highest duty to passengers. A trap: 'reasonable person' is an objective standard — the defendant's good intentions do not excuse a breach.
The Four Elements of Negligence (DBCD)
A plaintiff must prove all four, or the claim fails.
- Duty of care — a legal obligation to meet a standard of conduct, arising from a relationship, foreseeability, or statute.
- Breach of duty — failing to meet that standard (speeding, not salting an icy walk).
- Proximate (legal) cause — two parts: cause in fact (the 'but-for' test) and legal cause (the harm was a foreseeable result). An unforeseeable intervening event can break the chain.
- Damages — actual, measurable harm. No damages, no claim — even when a duty was clearly breached.
Special Doctrines
- Res ipsa loquitur ('the thing speaks for itself') — negligence is inferred when the event would not normally occur absent negligence, the instrumentality was in the defendant's exclusive control, and the plaintiff did not contribute (surgical sponge left in a patient).
- Negligence per se — violating a safety statute is an automatic breach (running a red light).
A homeowner deliberately punches a guest during an argument, breaking the guest's nose. Why would the HO-3 Section II liability coverage most likely NOT respond?
A driver runs a red light and strikes a pedestrian. Which negligence doctrine makes the statutory violation an automatic breach of duty?
The Four Elements of Negligence, Applied
To recover for negligence a claimant must prove all four elements, often remembered as duty, breach, causation, and damages. Duty is a legal obligation to act with reasonable care toward the claimant. Breach is the failure to meet that standard. Causation requires both actual cause (but for the act, the harm would not have occurred) and proximate cause (the harm was a foreseeable result). Damages require actual, measurable injury. If any element is missing, no negligence liability exists, and a favorite exam item removes one element (usually damages or proximate cause) to make a sympathetic plaintiff lose.
The Reasonably Prudent Person Standard
Breach is measured against the reasonably prudent person, an objective benchmark of how an ordinary, careful person would behave under the same circumstances. Professionals are held to the higher standard of their field, children to the standard of a similar child (except in adult, dangerous activities), and those with special knowledge to that knowledge. This objective standard means good intentions do not excuse careless conduct, and it is the lens through which the exam evaluates whether a defendant breached a duty.
Three Sources of Legal Liability
Legal liability arises from three sources. Torts are civil wrongs other than breach of contract, including negligence, intentional torts, and strict (absolute) liability. Contracts create liability when a party assumes another's obligations or warrants a result. Statutes impose liability directly, as with dram-shop laws or workers compensation. Insurance most often responds to tort liability, but contractual liability (hold-harmless agreements) and statutory liability appear throughout commercial coverage, so identifying the source helps you predict which policy responds.
The Three Classes of Torts and Special Doctrines
Torts divide into intentional torts (assault, battery, libel, slander, false imprisonment), negligence (failure to use reasonable care), and strict liability (liability without fault for abnormally dangerous activities, defective products, or keeping wild animals).
Special doctrines refine these: res ipsa loquitur lets the facts speak for themselves and shifts the inference of negligence to the defendant when the instrumentality was in the defendant's exclusive control and the harm would not ordinarily occur without negligence; negligence per se treats violation of a safety statute as automatic breach; and the attractive nuisance doctrine imposes a duty toward trespassing children. The exam uses these doctrines to convert otherwise hard-to-prove cases into liability, so recognize their trigger facts.