wow - Tony: I feel for you. I'm glad that my family and I don't live in such a dangerous part of the world. The way you describe it Seattle sounds like somewhere in south america.
As a contrast, my kids go out trick or treating on their own, heck, they go to school, their friends places, the park all on their own. When we're home awake, our door is unlocked (and it's sometimes not locked when we're not there). Neighborhood kids come over all the time to play and although we do let parents know that their kid has arrived at our place, it's never been a big deal. I've lived in several places in Canada (interior BC, Edmonton AB, and now Ottawa ON) been a stupid young man out with buddies on countless occasions and never been in a situation that would require any kind of force beyond talking. Well, once I did punch someone, but that was pretty rare.
Not saying that crime does not happen, but it certainly does not pull us in to the point where we need a weapon of any kind. I don't even own a baseball bat and my knives are all swiss army!
Back on topic, here's what I think is a pretty nice gun: