Hi, I have a few questions. 1) does traditional JJ include ANY techniques like kicks,punches,hand deflections OR does it all come down to fighting on the ground? 2) how hard is JJ on the body? for example when your training partner performs an arm lock on you which is used to break the attacker's arm then does this cause pain? I mean how close are you to actually breaking your arm? I have seen vids where locks were demonstrated and the guy who was being locked had tap out whenever it became too painful. This means that the guy who was performing the lock was actually causing pain. To me this sounds pretty dangerous. I mean when you're already in a zone where you have to tap out then this means that it's already pretty painful. What if for example your training partner is a jerk and he applies too much force and you seriously injure yourself?