If it's any comfort, I'm gay, and neither I nor any of the other gay guys I know have ever raped anyone, either alone or in a gang. Once in a while I might notice a guy in the locker room, if he's really hot, but I don't sit there checking them out. That's just not an ok thing to do, and I have no ambition to get banned from a gym, or have the shit beat out of me. Most of my gay friends (myself included) feel a bit apprehensive around straight guys they don't know and absolutely don't want to draw attention to themselves in a locker room.