He nailed his balls to the board with nails (Part 1)

Dude’s in a garage or shed, shirt off, leather belt holding up his jeans. He’s got a wooden board on the workbench and starts pounding nails straight into a potato first—just to show he’s not fucking around. Then he moves the potato aside, lines up a nail right over his own nuts, and swings the hammer. You see the skin dimple, hear the thud, and the nail’s in. No cuts, no edits, just the real sound of metal hitting flesh. Camera’s tight on his hands and the board, so you don’t miss a single hit. If you’re into the whole pain-for-pleasure thing, this is the kind of no-frills, no-excuses shit that gets the job done.