ALL the above and this..
My father taught me one thing about guns that has stayed with me my entire life.
Dad told me, "pull it and shoot or don't pull it at all. IF you can find a way to get out of a situation without using do so. If not, do not hesitate and do not point a gun and threaten. That person might just take the gun from you and shoot you with your own gun."
YMMV
