volenti non fit injuria

| \ vō-ˈlen-ˌtī-ˌnän-ˌfit-in-ˈju̇r-ē-ə, wō-ˈlen-tē-ˌnōn-ˌfit-in-ˈyü-rē-ä \ | vo·len·ti non fit in·ju·ria
  1. : to one who is willing no harm is done —used as a common-law maxim expressing the principle that one is not injured when a risk is voluntarily assumed — compare assumption of risk