true to an extent ... I don't know how Jersey is but here you stand to open yourself up to a world of legal hurt if you just try and pop someone in the arm or leg ... fuckers can and will likely sue you for pain & suffering and all that shit however, you drop 'em for good and as long as you can prove forceful / illegal entry of some type you're pretty much in the clear
I don't own a gun yet. My wife is from germany and shares a lot of the same views as some of the other europeans on here. I told her as soon as we get our own home I'm buying a gun. She didn't argue. We don't live in a bad area by any means, its actually quite nice but the more seedy parts of the city have been creeping their way further and further north every year. I'd rather have a gun and never need to use it (hopefully) but I will if I need to