As for shoot to wing someone I'll admit its not for the average Joe, but to say it only happens in movies is incorrect. I've heard of it being done to disarm people or stop them from getting away, and both in real life situations. Of course you have to be very very good with a gun to do it and its only suggested for pros. I fully understand that a gun is meant to kill, I live in a small town in Texas, most kids around here own at lest two guns by the time they are 12. I never said I would shoot to wing someone. I was only pointing out to J that their are other options than shooting to kill.
And here is something my gun class teach once asked me. If your shooting to kill, lets say you hit the guy but he's not dead what do you do now?
Deciding to take someones life even in self defense is not something to be taken lightly.