>Does years of domestic violence count? What about shootings I've witnessed but wasn't a part of? There's a school nearby and kids carry guns around here.

No, I mean, per capita, how many people as compared to the number of people you know total, have perpetrated violence.

>I don't hang out with the violent types in the first place, so the question makes no sense.

But if violence were ubiquitous, you wouldn't be able to avoid it. I don't know any violent people either. My point is just that most people (per capita) do not commit violence most of the time. The idea that everyone's just chomping at the bit to perpetrate violence is at odds with reality.