The most dangerous person around

In 1962, Abraham H. Maslow wrote, I suppose it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail.

So my question is this: what if the only effective tool you feel you have is a gun?

When you feel threatened, or angry, or annoyed, and your temper is short, or you've had a rough week, or a bad day, and some jerk gets in your face -- what happens when that gun is right there?

What about that car with the red faced, raging, lunatic, screaming obscenities and waving his arms on the road behind you?  Do you need to protect yourself from him?  Does he have a gun? Do you?

What about that idiot parent who carelessly leaves a gun around and your child is killed?

What about those people who see danger in every look? 

The beauty of a hammer is it's short range effectiveness, but even a police officer is a liability when a child raises a toy gun in the park.