This is actually a very good (and lucrative) idea. It really is simply taking "roleplay" to a different realm and level. I disagree with those that believe that it could be damaging to the psyche. With the right mindset, you may actually learn something that could help you in emergency situations. It reminds me alot of what Master puts me through. Our relationship is such that everything he does, no matter how harsh or extreme, is a learning experience not just a sexual experience and it helps me to learn more about myself and how to adapt to all sorts of situations. I think, honestly, something like this COULD do alot of good.