2A

 A: Guns have only two enemies: Rust and Politicians. Rust can be prevented, Politicians cannot.

B: It's always better to be judged by 12 than carried out by 6.

C: Cops carry guns to protect themselves, not you.

D: Never let someone or something that threatens you get inside arm's length.

E: Never say "I've got a gun." If you need to use deadly force, the first sound they should hear is the safety clicking off, or the hammer cocking.

F: The average response time of a 911 call is 23 minutes; the response time of a .357 is 1,400 feet per second.

G: The most important rule in a gunfight is: Always Win - there is no such thing as a fair fight. Always Win - cheat if necessary. Always Win - 2nd place doesn't count.

H: Make your attacker advance through a wall of bullets ... you may get killed with your own gun, but they'll have to beat you to death with it because it will be empty.

I: If you're in a gun fight:
(a) If you're not shooting, you should be loading.
(b) If you're not loading, you should be moving.
(c) If you're not moving, you're dead.

J: In a life and death situation, do something ... it may be wrong, but do something!

K: If you carry a gun, people will call you paranoid. Nonsense! If you have a gun, what do you have to be paranoid about?

L: Never fire a "warning shot", that is just one wasted bullet, which could be needed within moments.

M: You can say "stop" or any other word, but a large bore muzzle pointed at someone's head is pretty much a universal language; and, you won't have to press 1 for Spanish/Mexican, or 2 for Chinese, or 3 for Arabic.

N: Never leave a wounded enemy behind. If you have to shoot, shoot to kill. In court, yours will be the only testimony.

O: You cannot save the planet, but you may be able to save yourself and your family.