If the defendant can show that the claimant was aware the defendant might act negligently but agrees to the risk and freelyconsents he will not be liable.
Haynes v Harwood
the defence of consent is not available not those who feel morallyobliged to get involved.
Morris v Murray
D and C were out drinking and then decided to go out in the defendants’plane. Plane crashed and D was killed. The claimants claim against the defendants estate failed as he freelyconsented to getting into the plane knowing the risks.