ok peeps! i have a slight problem. i have another dom who i don't even know contacting my sub. he has also offered her his collar even though he knows that she has already been collared. he's asked what her limits are and has asked for play. i have denied his request for asignation because he has gone around me instead of coming to me and asking me. he's continued to be obnoxious and doesn't treat me with any respect. how do i resolve this issue? i've been firm with him and he keeps persisting in matters that are none of his business. i'm not sure where to go from here. i've heard some talk about challenging him but i'm not reall sure what that means exactly. any help you guys have would be appreciated.