consent

• Smith v Baker


  defence will not succeed where C has no choice but to accept risk.

  an assumption of risk must be freely taken and the C must voluntarily undertake risk of harm
• Nettleship V Weston


  consent by C may reduce damage rewarded
• Haynes v Harwood


  where a person has duty to act and is then injured because of D's negligence, volenti (consent) will not be available as a defence