Originally posted on 05/17/2013:

Fighters shall conduct themselves in accordance with commonly accepted standards of decency, social convention, and morals, and fighters will not commit any act or become involved in any situation or occurrence or make any statement which will reflect negatively upon or bring disrepute, contempt, scandal, ridicule or disdain to the fighter or the UFC
UFC Code of Conduct. They signed it so they follow it or get fined.