for me, I would only be interested (as a vic) if I did not know the attacker. This,of course, poses a problem in that I am certainly NOT into being hurt, at least lasting pain or injury. I've often thought that about the only way around it would be to have one guy there that I trusted to keep me safe, and others that I did not know at all. Maybe something like playing with the guy I know, where he ties me up and blindfolds me, then lets other guys into the room when I can't even see them. Now THAT would be interesting....