A sketch of me (well, my anthro self) instructing a less experienced rifleman the finer points of marksmanship. I recall a summer spent at Elsworth AFB where this was the extent of my duty day.

"Don't hold your breath, airman. Let the natural breathing cycle complete, and at the bottom of it, squeeze the trigger. Don't be afraid to really squeeze it, either. As long as you're locked into the proper sighting, you'll put lead on target. Okay, move your selector and try again."