LOL! ....And you don't think being shot had anything to do with his choice? Maybe didn't want to get shot again? See, for me it's all about self-defense. Stopping an attack with one of the many tools I have. Self-defense- not necessarily by causing death every time. Blowing his lungs out his back, whatever. STOPPING beats killing in a lot of ways. In today's litigational society the paperwork, lawsuits, time before a judge all take forever- even if self-defense. Death is serious stuff. Also, and repeating myself, if I can't stop someone with 10 shots of .22lr I shouldn't bother with a gun. As for Serpico: Yup, he lived- but he didn't jump up and chase the guy, did he?
Yes, I own larger caliber guns. I just don't spend a lot of time worrying if what I am carrying is "enough". When it comes to attacks from PEOPLE it will always be enough. (I spend a lot of time in the forest, so THERE I worry about caliber.)