But really this is why guns are only for killing people and why you'd empty the magazine if you do it. You can't rely on crippling someone by shooting their leg like in a video game (or sometimes in the movies).
I don't see "good chance" on my scientific calculator, or wolfram alpha, or any of my math textbooks. Care to enlighten me on its definition?
I have seen hundreds of videos (in the seedy corners of the net) of people being shot, and I can't recall a single one where the victim kept approaching after being fired upon.
No, I don't know how to quantify it, but if you'd like to continue to disagree with me I think you'll have to do the research on it, since you seem to be very engaged with the problem, and I have other things to do.
The PG-13 rating was created in response to violence in PG movies (somebody getting their heart ripped out in Temple of Doom), not nudity.