Beware the man who only has one gun. He probably knows how to use it!
Don't forget, incoming fire has the right of way.
If you carry a gun, people will call you paranoid. That's ridiculous. If I have a gun, what in the hell do I have to be paranoid about?
Don't shoot fast, shoot good.
The two most important rules in a gunfight are: always cheat and always win.
Make your attacker advance through a wall of bullets. I may get killed with my own gun, but he's gonna have to beat me to death with it, cause it's gonna be empty.