Before I played my first game 21+ years ago I did exactly this, my thinking being that I didn't want to squeal like a right "Mary" the first time I got hit, so set my wife up with my G19, stepped away about 40 feet wearing goggles & a T-shirt & told her to shoot me lol.
After 5 or 6 shots she still hasn't hit me & my then 5 year old son pipes up "mummy can I try ?" (he was a bit of a whizz on nes duck hunt etc).
So she stands behind him, he adopts an almost perfect weaver stance & promptly shoots me in my left nipple, I let out a squeal which he thinks is the funniest thing in the world & his cue to empty the mag at me.
The next BB went so close to my left ear I swear I heard the crack, at which point I legged it for cover until he'd emptied the mag.
Thing is, I still squeal occasionally when one catches me right, inner thigh or maybe the kidney area, so some things never change, I'm still a Mary lol😢
As for my son, played his first game when he was 8 or 9 & been playing occasionally ever since, 26 & dad himself now, my granddaughter is 3 next week & it's only a matter of time before he suggests we set a range up in the garden for her😱