Well, my wife is a firearms instructor so I don't have to worry about that. but, a couple of weeks ago I was concentrating on hitting a target with my Winchester.308, I got up on it and when I pulled the trigger I "scoped" myself.
At least she (the .50 chick)got her finger off the trigger and kept the gun pointing downrange.
Here's another link for you gun guys and gals
AR15.COM

YouTube - TERRORIST BLOOPERS