You really need to add muay thai to ju jitsu training so you'd have the knowledge on how to defend yourself both on your feet as well as on your back when in take down mode. Personally, my favorate move is when they throw the punch, grab their arm, turn it back, hyper-extend it and then a palm punch into the solarplex. That usually disables them enough to neutralize the situation. If you go for the throat, you could kill the person. In this day and age, the police and DA would say you used excessive force not warranted for the situation. Obviously, if your life is in danger, a sweep to knock the dude down, hyper-extend the arm to dislocate, then a swift punch to the center of the throat. If one doesn't want to do too much damage, then it can be an open jab where the space between your thumb and index finger reside to ensure neutralizing the actor, but not causing any major internal bleeding or breathing issues.