14.2 The Negligence Framework: Duty of Care, Standards & Breach

14.2 The Negligence Framework: Duty of Care, Standards & Breach

Negligence is the most heavily tested subject area on the Multistate Bar Examination (MBE). Establishing a prima facie case of negligence requires the plaintiff to prove five essential elements by a preponderance of the evidence:

1. Duty: A legally recognized obligation requiring the defendant to conform to a standard of conduct for the protection of others;
2. Breach: Failure by the defendant to conform to the required standard of care;
3. Actual Cause (Cause-in-Fact): A causal link demonstrating that the injury would not have occurred but for the defendant's breach;
4. Proximate Cause (Legal Cause): Proof that the injury was a foreseeable consequence within the scope of the risk created by the defendant;
5. Damages: Actual, legally cognizable physical injury or property damage.

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|                        THE FIVE ELEMENTS OF NEGLIGENCE                      |
|                                                                             |
|   [ DUTY ]        --> Standard of care owed to foreseeable plaintiffs       |
|       |                                                                     |
|   [ BREACH ]      --> Failure to meet standard (Hand Formula / Per Se / RIL)|
|       |                                                                     |
|   [ ACTUAL CAUSE] --> "But-for" / Substantial factor test                   |
|       |                                                                     |
|   [ PROXIMATE ]   --> Foreseeability / Scope of risk / Intervening forces   |
|       |                                                                     |
|   [ DAMAGES ]     --> Actual physical or property harm (NO pure economic)   |
+-----------------------------------------------------------------------------+

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1. The Scope of Duty & The Foreseeable Plaintiff (Palsgraf)

The Palsgraf Conflict

In Palsgraf v. Long Island Railroad Co. (1928), the New York Court of Appeals established the foundational framework for determining to whom a duty of care is owed:

• Cardozo Majority (Zone of Danger Rule - Majority Rule): Duty is relational. A defendant owes a duty of care only to foreseeable plaintiffs who are situated within the foreseeable zone of danger created by the defendant's conduct. If a reasonable person would not have foreseen danger to the plaintiff, no duty is owed.
• Andrews Dissent (Universal Duty Rule): Every person owes a general duty of care to society as a whole to refrain from acts that unreasonably threaten the safety of others. If a defendant breaches that duty, liability to any injured party is governed by proximate cause, not duty.

Affirmative Duties to Act and Rescue

As a foundational common law principle, there is no general duty to rescue, assist, or protect strangers in peril, even if aid could be rendered at zero risk or cost.

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|                   EXCEPTIONS: AFFIRMATIVE DUTIES TO RESCUE                  |
|                                                                             |
|   1. SPECIAL RELATIONSHIPS:                                                 |
|      - Common carrier-passenger, innkeeper-guest, business-customer,       |
|        employer-employee, school-student, jailer-prisoner.                  |
|                                                                             |
|   2. CREATION OF PERIL:                                                     |
|      - If defendant's conduct (even if entirely non-negligent) causes the   |
|        plaintiff's peril, defendant has an affirmative duty to assist.      |
|                                                                             |
|   3. VOLUNTARY UNDERTAKING:                                                 |
|      - One who voluntarily begins a rescue must exercise reasonable care and|
|        cannot abandon the rescue if leaving the victim in a worse position. |
|                                                                             |
|   4. STATUTORY DUTIES:                                                      |
|      - Specific statutory enactments (e.g., hit-and-run reporting statutes).|
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2. Specialized Standards of Care

1. The Reasonably Prudent Person (RPP)

The baseline standard of care is objective: that of a reasonably prudent person under the same or similar circumstances.

• Physical Disabilities: The standard incorporates physical limitations. A blind person is held to the standard of a reasonably prudent blind person.
• Mental Deficiencies & Low Intelligence: The standard does NOT adjust for mental illness, intellectual limitations, or voluntary intoxication. An individual suffering from cognitive impairment is held to the objective standard of a person of normal intelligence and prudence.
• Superior Skills / Knowledge: If an actor possesses superior specialized knowledge or skill (e.g., a race car driver or structural engineer), the actor is held to a standard that incorporates that superior knowledge.

2. Children

• Standard: A child is held to the standard of a child of like age, intelligence, education, and experience (a hybrid subjective-objective test).
• The Adult Activity Exception: If a child engages in an inherently dangerous adult activity (e.g., operating an automobile, tractor, motorboat, or airplane), the child is held to the full adult objective standard of care.

3. Professionals (Malpractice)

• Standard: A professional (doctor, lawyer, accountant, architect) must exercise the knowledge, skill, and competence of an average member of that profession in good standing.
• Specialists: Board-certified specialists are held to a national standard of care.
• Informed Consent (Medical): A physician has a duty to disclose material risks of a proposed medical treatment—risks that a reasonable patient would consider significant in deciding whether to undergo the procedure.

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3. Special Duties of Land Possessors

Under the traditional common law framework, the duty owed by a possessor of land depends strictly on the legal classification of the entrant:

+-----------------------------------------------------------------------------+
|                   COMMON LAW LAND POSSESSOR DUTIES MATRIX                   |
|                                                                             |
|   ENTRANT STATUS     DEFINITION / EXAMPLES          DUTY OWED               |
|   -----------------  -----------------------------  ----------------------  |
|   Undiscovered       Enters without permission;     ZERO DUTY.              |
|   Trespasser         possessor unaware.             (No willful/wanton harm)|
|                                                                             |
|   Discovered /       Possessor knows or should know Duty to WARN of or make |
|   Anticipated        of trespassers (beaten paths). SAFE known, highly      |
|   Trespasser                                        dangerous, concealed    |
|                                                     ARTIFICIAL conditions.  |
|                                                                             |
|   Child Trespasser   Attractive Nuisance Doctrine   Reasonable care to      |
|                      (Restatement 2d § 339).        protect children from   |
|                                                     artificial hazards.     |
|                                                                             |
|   Licensee           Enters with permission for own Duty to WARN of or make |
|                      purpose (social guests).       SAFE known concealed    |
|                                                     dangers (natural & art).|
|                                                     (No duty to inspect).   |
|                                                                             |
|   Invitee            Business customer or public    Duty to INSPECT, discover|
|                      invitee on open land.          latent dangers, and     |
|                                                     make safe or warn.      |
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The Attractive Nuisance Doctrine (Child Trespassers)

A land possessor is liable for physical harm to trespassing children caused by an artificial condition if five elements are satisfied (Restatement (Second) of Torts § 339):

1. The possessor knows or has reason to know that children are likely to trespass on the place where the condition exists;
2. The condition is one the possessor knows or should know involves an unreasonable risk of death or serious bodily harm;
3. The children, because of their youth, do not discover or realize the risk involved;
4. The utility to the possessor of maintaining the condition and the burden of eliminating the danger are slight compared to the risk to children; and
5. The possessor fails to exercise reasonable care to eliminate the danger or protect the children.

[!NOTE] Modern Trend (Minority/California Rule): A growing minority of jurisdictions have abolished the rigid status distinctions between licensees and invitees, imposing a single unified standard of reasonable care under all circumstances to all lawful visitors (Rowland v. Christian).

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4. Proving Breach of Duty

+-----------------------------------------------------------------------------+
|                        METHODS OF PROVING BREACH                            |
|                                                                             |
|   1. LEARNED HAND FORMULA: Breach exists if B < P * L                       |
|      (Burden of precaution is less than Probability of harm * Gravity)      |
|                                                                             |
|   2. NEGLIGENCE PER SE: Statutory violation establishes conclusive breach   |
|      - Plaintiff in protected class + Harm of type statute prevents         |
|                                                                             |
|   3. CUSTOM IN INDUSTRY: Evidence of standard, but NOT conclusive           |
|      (Entire industry may be negligent - The T.J. Hooper)                   |
|                                                                             |
|   4. RES IPSA LOQUITUR: Permissible inference of negligence                 |
|      - Ordinarily requires negligence + Exclusive control + No P fault      |
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1. Cost-Benefit Analysis: The Learned Hand Formula

In United States v. Carroll Towing Co. (1947), Judge Learned Hand articulated an economic calculus for determining breach: $\text{Breach occurs when } B < P \times L$

• $B$ (Burden): The financial, operational, or practical cost of taking adequate precautions;
• $P$ (Probability): The foreseeable likelihood that the harm will occur;
• $L$ (Loss / Gravity): The foreseeable severity or magnitude of the resulting injury.

2. Statutory Standards & Negligence Per Se

Where a criminal safety statute or regulatory enactment prescribes a specific standard of conduct, a violation conclusively establishes duty and breach as a matter of law if the plaintiff satisfies two prongs:

1. Class of Persons: The plaintiff belongs to the specific class of persons the statute was enacted to protect; and
2. Class of Risk: The injury suffered was the specific type of harm the statute was designed to prevent.

Excuses for Statutory Violation: Negligence per se does not apply if:

• Compliance would cause greater danger than violation (e.g., walking on the wrong side of the road to avoid an oncoming vehicle);
• The defendant suffered sudden physical incapacity beyond control;
• The defendant made reasonable, diligent efforts to comply but was unable.

3. Custom in the Industry

• Evidence of conformity with industry custom is admissible to show reasonable care, and evidence of deviation is admissible to show breach.
• Non-Conclusive: Custom is not conclusive. Under The T.J. Hooper (1932), an entire industry may be lagging behind reasonable safety practices; adherence to an unsafe custom does not insulate a defendant from liability.

4. Res Ipsa Loquitur ("The Thing Speaks for Itself")

Res ipsa loquitur allows a plaintiff who lacks direct evidence of the defendant's specific negligent act to create a permissible inference of breach by establishing three requirements:

1. The accident is of a kind that ordinarily does not occur in the absence of negligence;
2. The instrumentality causing the harm was within the exclusive control of the defendant; and
3. The accident was not due to any voluntary action or contribution by the plaintiff.

Procedural Effect of Res Ipsa:

• Res ipsa does NOT shift the ultimate burden of persuasion or entitle the plaintiff to a directed verdict.
• It simply creates an inference of negligence that defeats the defendant's motion for a directed verdict / Judgment as a Matter of Law (JMOL), allowing the case to reach the jury.