i agree to the post before me but i also want to add this
when in fact a sub cums during CR a mental influence should be in the game plan ex. doing something/saying something or even actions to make them feel shame/humiliation for what they did and how their master is not pleased.Another thought to pop into my head is after that if it should happen the sub should have to work hard to gain the trust back with his/her master that should make the sub really prove that they are serious and want to please.