OK, this question may be a little heavy for Christmas day, but I just read something that made me think about the use of lethal force to protect strangers and wanted to get y'alls take on it. Hypothetical: You are in a store where an armed robbery is taking place. The robber is holding a gun to the head of a cashier. The store is large enough that you have the opportunity to escape. However, you are carrying a concealed weapon and are in a position to shoot the robber without him seeing you. What do you do? Would you take the chance to save the cashier, whom you do not know, and possibly risk injury to yourself? Or would you slip out to get away from the situation and call the police? I guess the root of my inquiry relates to the extent you are willing to go to protect others with whom you have no relationship (i.e., strangers).