8.1 Negligence, Torts, and Legal Liability

Key Takeaways

  • Liability insurance is THIRD-PARTY coverage — it responds when the insured is legally obligated to pay another person for bodily injury or property damage, never for the insured's own loss.
  • Negligence requires all FOUR elements — duty, breach, proximate cause, and damages; if any one is missing there is no legal liability and the policy owes nothing.
  • Torts split into negligence (unintentional), intentional torts (assault, libel), and absolute/strict liability (no fault required) — only the first is normally insurable.
  • Liability can also arise by CONTRACT (a hold-harmless agreement) or by STATUTE (workers compensation, dram shop laws), independent of negligence.
  • The insurer owes two duties on a covered suit — the broader DUTY TO DEFEND (triggered by mere potential coverage) and the DUTY TO INDEMNIFY (pay damages up to limits once liability is established).
Last updated: June 2026

Why Liability Is the Heart of Casualty Insurance

Liability insurance pays sums the insured becomes legally obligated to pay as damages because of bodily injury or property damage to a third party. It is the largest single source of questions on the casualty half of the Property and Casualty (P&C) exam, so master the vocabulary below before moving to specific forms.

First-Party vs. Third-Party

TypeWho Is PaidExample
First-partyThe insuredCollision repairs YOUR auto
Third-party (liability)Someone the insured harmedYou injure a guest; coverage pays THEM

Trap: Liability is ALWAYS third-party. If the insurer pays the named insured's own loss, that is property/first-party coverage — never liability.

The Four Elements of Negligence

Most liability claims rest on negligence — the failure to use the degree of care a reasonably prudent person would use. To recover, the claimant must prove ALL FOUR elements:

  1. Duty — a legal obligation to exercise reasonable care toward the claimant.
  2. Breach — a failure to meet that standard of care (an act or omission).
  3. Proximate cause — the breach was the direct, unbroken cause of the harm.
  4. Damages — actual, measurable injury or loss occurred.

Miss any one and the claim fails. A driver who runs a red light (breach of duty) but injures no one and damages nothing produces NO liability — there are no damages.

The Standard of Care

The reasonably prudent person standard is objective. It rises with the foreseeable danger and with special status: a common carrier or a professional (the standard of care of a doctor or engineer) is held to a higher bar. Children are usually judged against other children of like age and experience.

Memory aid: D-B-C-D — Duty, Breach, Causation, Damages. Exam stems frequently describe a fact pattern missing one element and ask why the claim fails.

Classifying Torts

A tort is a civil wrong (other than breach of contract) for which the law allows a remedy. Three categories matter for the exam:

Tort TypeFault StandardInsurable?Example
NegligenceFailure of reasonable careYesSlip-and-fall on wet floor
Intentional tortDeliberate actNo (excluded)Assault, battery, libel, slander
Absolute / strict liabilityNo fault neededSometimesKeeping wild animals; blasting; defective products

Absolute (strict) liability attaches regardless of care because the activity is inherently dangerous. Liability policies cover negligence and many strict-liability exposures but exclude intentional acts of the insured.

Other Sources of Legal Liability

Liability is not limited to torts:

  • Contractual liability — assumed under a hold-harmless agreement (e.g., a tenant agreeing to indemnify a landlord). Standard policies exclude assumed liability but give it back for an insured contract.
  • Statutory liability — imposed by law regardless of negligence: workers compensation (employer liability) and dram shop / liquor-liability laws holding a server liable for an intoxicated patron.

The Insurer's Two Duties

When a covered suit is filed the insurer owes two SEPARATE duties:

  1. Duty to defend — provide and pay for legal defense. It is broader than indemnity, triggered whenever allegations even potentially fall within coverage; the insurer must defend a suit that is groundless, false, or fraudulent.
  2. Duty to indemnify — pay damages the insured is legally obligated to pay, up to the limit, once liability is actually established.

The duty to defend ends when the limit is exhausted by payment of judgments or settlements.

Test Your Knowledge

A homeowner leaves a garden hose stretched across a public sidewalk. A jogger trips, falls, and breaks a wrist. Which element of negligence is supplied by the broken wrist?

A
B
C
D
Test Your Knowledge

Which statement about the insurer's duty to defend is CORRECT?

A
B
C
D

Negligence Doctrines That Shift or Establish Liability

Beyond the four elements (duty, breach, proximate cause, damages), the exam tests doctrines that make proving negligence easier or impose it automatically:

  • Res ipsa loquitur ("the thing speaks for itself") — negligence is inferred when the injury would not normally occur without negligence and the instrumentality was in the defendant's exclusive control (a surgical sponge left inside a patient).
  • Negligence per se — violating a safety statute is automatic breach if the harm is the type the statute aimed to prevent.
  • Strict (absolute) liability — liability without fault for inherently dangerous activities (blasting, keeping wild animals) and defective products; the plaintiff need not prove negligence.
  • Attractive nuisance — heightened duty toward child trespassers drawn to hazards (pools, trampolines).
DoctrineWhat the plaintiff must show
Res ipsa loquiturInjury implies negligence; exclusive control
Negligence per seStatute violated; statutory-type harm
Strict liabilityDangerous activity / defective product (no fault needed)

Trap: strict liability removes the need to prove the four negligence elements — a common correct answer for product-defect and ultrahazardous-activity scenarios.

Test Your Knowledge

A demolition company's controlled blasting cracks a neighbor's foundation. Under what doctrine is the company liable even without proof of carelessness?

A
B
C
D

Premises Liability and the Duty Owed to Entrants

Legal liability often turns on the status of the person on the property, because the duty of care varies — a heavily tested distinction in casualty:

EntrantDuty owed by the occupier
Invitee (customer, business visitor)Highest duty — inspect for and warn of/repair hidden dangers
Licensee (social guest)Warn of known dangers; no duty to inspect
TrespasserMinimal — only refrain from willful/wanton harm
Child trespasserHeightened duty under attractive nuisance

A store therefore owes a customer (invitee) the duty to inspect aisles and clean spills, but owes a trespasser only the duty not to set traps. The attractive nuisance doctrine raises the duty toward children drawn to hazards like pools or trampolines, even if technically trespassing.

Exam tip: identify the entrant's status first. The same wet floor produces liability to an invitee (failure to inspect/warn) but often no liability to a trespasser. This premises-liability ladder underlies many CGL and homeowners liability questions.