"Didn't Bill Hickock kill his friend and deputy like that.
In the middle of a shoot out with some drunks, he heard someone coming up behind.
He spun around and fired, killing his deputy, Dave, who was running up to help him"
Yes, that's supposed to be true. That happened in the middle of an active gunfight. A lot different than "training" yourself to automatically turn, draw and fire at a noise behind you. Mark