Somewhat along this line, a few years ago there was a fairly hilarious Youtube video delving into the caliber wars by showing the relative interactions resulting from a mugger approaching a man while armed with (1) a 9mm; (2) a .40 S&W; and (3) a .45. This thread spurred me to go looking for it, and I can't find it. If anyone else remembers it, do you by any chance have a link to it?