Thus, both uses of the word “patient” – the name of “someone who suffers” and an adjective meaning “to endure with indulgence” – come from the same origin. Since the late 1990s, new models of sexual consent have been proposed. Consent as understood in some contexts may differ from its day-to-day meaning. For example, a person suffering from a mental disorder, a low mental age or a legal age of sexual consent may voluntarily perform a sexual act that still does not meet the legal threshold of consent in accordance with the legislation in force. Consent can be either explicit or implied. For example, participation in a contact sport usually involves the acceptance of a degree of contact with other participants, which is implicitly agreed upon and often defined by the rules of the sport.  Another concrete example is that a boxer cannot complain about being hit in the face by an opponent; Implied consent is valid if the violence can normally and reasonably be considered fortuitous for the sport in question.  Explicit consent is given when oral or written agreements are concluded, including in a contract. .