Charlie Hebdo aside, even the Aurora situation would have been hard to respond to. Well-armed guy walks into a dark theater, throws a smoke grenade, starts firing into the crowd with a rifle. Let's say you don't die right away. You hide behind the seats, which probably can't stop bullets, ready to shoot the bad guy with your little pistol. Can you see through the smoke, can you see in the dark? While people are screaming and running, can you get a clear shot? Some theaters are big. Can you reliably make a shot at that distance? Will a well-intentioned CCW carrier mistake you for the bad guy and shoot you?

If the room is entirely dark, I hope you've brought your flashlight. And I hope you have practiced the FBI hold, because as soon as you turn on that light, you are *the* target.