I dont know. I dont carry and I have not seen any action.
But I do see 4 outcomes to this situation.
A store is being robbed at gunpoint.
I am in the store and I have a gun.
I could...
(A) Shoot the BG. (GREY)
(B) Shoot the BG if he shoots anyone. (BLUE)
(C) Wait and call 911. (GREEN)
or
(D) Wait, shoot the BG, grab the money, and run. (RED)
Pick your color.