...and I'm agreeing with the others, too.
Part of the "fun" of BDSM is the feelings of complete trust and, contradicting it, the feeling of risk. You willingly render yourself helpless and vulnerable because of your trust, and your feelings of vulnerability are sort of like fear because they are risks you would never run with someone if it weren't for your trust in the person who is the Top.
I know the sentence was convoluted, and I apologize -- what I mean is that if you don't completely trust your husband, then to allow yourself to do a scene with him ends up with you, at best, feeling like a fool.
If a person says they are a Dom but asks you if you are trusting enough to play Russian roulette, say No.
her_Joe