This one is far more complicated than non-americans think. I've spoken to people outside the country, and they tend to only listen to the really dumb democrats when it comes to this issue.

You can't close Pandora's box. There are 393 million guns in the hands of civilians here. If you have a crazy neighbor with a gun, you kind of have to go get one yourself. That, or devise another method of viable self defense. The cops won't help you, not in virtually any situation.