Funny story... I went to the Knob Creek Gun Shoot over 20 years ago. A dude was trying to sell be a bullet proof vest. He said that he'd worn it several times to prove it worked. I was dubious and he offered to let me shoot him from 10ft while he wore the vest.... I made fun of him to the point he left his own booth. LOL. Dude didn't know me from Adam and was ready to let me shoot him in the chest with 9mm... LOL.