Again, I'm not suggesting you bore holes in people for no good reason. Here's an example:
My neighbor, who's around 30, was walking down the street when he noticed a group of kids were following him. Now, this may sound stereotypical, but they were black, hispanic, and had bandanas on, so obviously this was some kind of gang.
My neighbor doesn't shoot them, but he brandishes his weapon, turns around and starts yelling at them to get away from him. Immediately, they turn around and move in the other direction.
If he didn't show his gun, he may have gotten mugged, or even worse. That's why I want a CCP; not to kill people for fun but just so I can feel in control of any situation.