Seeing as we're on the stupidity subject....I was working on a barn conversion many moons ago in North Devon UK and the owner was a young guy who'd inherited it from an elderly guy he used to labour for him. One day we had a small fire going and he threw an empty butane gas bottle on the fire then hid behind an out building...bang.We had a friend that did the same. He didn't burst his eardrums but he couldn't hear at all for a few hours.
Thankfully nobody got hit by shrapnel....huge blast hole in the field and absolutely no trace of the bottle....complete nutter