I got my buddy to shoot a shotgun (first time shooting a gun)… big tough gym rat kinda guy… I told him how to stand, pull the butt into his shoulder and brace himself… but because I was always messing around with him he thought I was full of shit.
Stood with his feet apart equal to each other and held the butt about an inch and a bit from his shoulder. The gun almost flew out of his hands, when he showed up to work on monday his entire bicep and most of his pec was bruised purple. All I could do was say “I told ya so” and poke him in the bruised tit.