I didn't mean spontaneously try to hit with crazy random punches like a tazmaninan devil. Spontaneity, as I was using it, was meant more for being able to change in a situation when the opponent changes. In Japanese it is referred to as henka(variations).
You brought up the clinch so we'll run with that for a bit. Someone clinches and starts kneeing you. So instead of just standing there and getting hit you: 1. Move forward so he can't knee you, 2. Put your arms down to block the knees while trying to maneuver out.
That is the spontaneity I was referring to.
David, if you can't be in this discussion like an adult please leave. Your random sarcastic comments are adding nothing of value.