Pete:
I know, and I tought it insane that you should need this. Of course you can use deadly force if your own or others life are in danger, it's the same here. But guns are not as widespread, so people tend to end up at the wrong end of them very seldom.
If at least everybody who owned a gun knew how to use it..
I think Norway, Sweden and Finland have one of the highest guns per citizen ratios in the world, but they are mostly hunting rifles and we have very few yearly firearm murders (mostly family tragedies).