While intentional torts are focused, Negligence is the vast, multi-tiered engine that handles the majority of civil disputes. Negligence is not about “meaning” to do something; it is about failing to behave as a Reasonable Person would under similar circumstances. For the machine to output a “Check,” the plaintiff must clear four rigorous checkpoints.
Checkpoint 1Duty: The Scope of Care
Checkpoint 2Breach: The Deviation
Checkpoint 3Causation: The Legal Connection
Checkpoint 4Damages: The Output
Checkpoint 1: Duty — The Scope of Care
The law does not require us to be our brother’s keeper, but it does require us to act with care if our conduct creates a risk.
- The Foreseeable Plaintiff: Under the majority Palsgraf view, Justice Cardozo’s approach, you owe a duty only to those in the “zone of danger.” If an injury is completely unforeseeable, no duty exists.
- The Standard of Care: The default is the Reasonable Person Standard—an objective, hypothetical person of average intelligence and caution.
Special Standards
- Professionals: Held to the standard of a member of their profession in good standing, such as the “Medical Standard.”
- Landowners: In many states, the duty depends on the status of the visitor.
Trespassers
Generally no duty, except to avoid “willful and wanton” harm. There is a special rule for “Attractive Nuisances” like swimming pools that entice children.
Licensees
Social guests are owed a duty to warn of known, hidden dangers.
Invitees
Customers and business visitors receive the highest duty. The landowner must inspect the premises and make them safe.
Checkpoint 2: Breach — The Deviation
Did the defendant's conduct fall below the required Standard of Care? To calculate this, the Law School of America uses the Learned Hand Formula:
B < PL
The Logic Gate:
- B = The Burden of taking precautions. How much would it cost or how hard would it be to fix the risk?
- P = The Probability of the injury occurring.
- L = The gravity of the Loss. How bad would the injury be?
If the cost of the fix, B, is less than the expected harm, P × L, then failing to take the precaution is a Breach.
Special Breach Shortcuts
- Negligence Per Se: If a defendant violates a safety statute, like a speed limit, that was designed to prevent the specific type of harm that occurred to a person the statute was meant to protect, the “Breach” light turns green automatically.
- Res Ipsa Loquitur: “The thing speaks for itself.” If a piano falls from a window onto a pedestrian, we don't need a witness to prove the owner was negligent; pianos don't fall from windows unless someone was careless.
Checkpoint 3: Causation — The Legal Connection
This is the “Golden Chain” we studied in Criminal Law, but with a civil focus. You need both links to hold.
- Actual Cause, or Cause-in-Fact: The “But-For” test. “But for the defendant's speeding, would the accident have happened?” If the answer is “No,” we have actual cause.
- Proximate Cause, or Legal Cause: This is the “Fairness Filter.” Even if you are the actual cause, are you legally responsible? Proximate cause is all about Foreseeability. If a defendant's negligence causes a small fire, which causes a chemical plant miles away to explode, which causes a bird to fall from the sky and hit someone—the chain is too long. The injury was not a foreseeable consequence of the original small fire.
Checkpoint 4: Damages — The Output
In Torts, there is no “Attempt.” If you are negligent but no one gets hurt, the machine resets. A plaintiff must prove actual physical, emotional, or economic harm.
The Thin-Skull Victim Rule: Once you breach your duty and cause a foreseeable type of injury, you are liable for the full extent of the damage, even if the plaintiff had a pre-existing condition that made the damage much worse than expected. You take your plaintiff as you find them.