Assumption of Risk

Assumption of risk is a defense where plaintiff voluntarily encountered known risk. California distinguishes primary assumption (complete bar for inherent risks) and secondary (merged into comparative negligence) under Knight v. Jewett.

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Exam Tip

PRIMARY = complete bar (inherent risks). SECONDARY = comparative negligence. Knight v. Jewett = football.

What is Assumption of Risk?

Primary vs. Secondary (Knight v. Jewett, 1992)

TypeEffectReason
PrimaryComplete barNo duty for inherent risks
SecondaryComparative negligenceDuty breached; knowingly encountered

Primary Assumption

Applies when no duty regarding inherent risks:

  • Contact sports
  • Recreational activities
  • Inherently dangerous activities

Express Assumption

Waivers enforceable for ordinary negligence in recreational activities. NOT enforceable for gross negligence or essential services.

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