[QUOTE=Aspidistra]
This isn’t so much a practical joke as - well, a really nasty hazing - but one of my friends when I was at school had a p/t job in a supermarket, stacking shelves. Out the back there was a box crusher machine - basically a giant hydraulic press, you shoe the boxes in, turn it on and the press would come down slowly and turn them all into flat cardboard.
So you can all probably see what’s coming here - yes, they all ganged up on this one kid none of them liked, put him in the box crusher and turned it on. Of course they turned it off again after about two seconds, but just thinking about what might have happened if there’d been a sudden fault and the off button didn’t work, frankly gave me the cold shivers, and still does (and this was a kid I’d never even met, I just heard the story)
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I’d have those assholes arrested, if they did something like that to me or anybody I knew. “Reckless endangerment” for starters.
There are some pranks that are just too easy for them to go wrong, and end up with someone seriously injured or killed.
When I was in the Navy, we periodically tested out the torpedo systems by firing a tube filled with nothing but a slug of water. (Not surprisingly, they were called water slugs.) After a water slug (or a real torpedo launch, for that matter), someone had to crawl down the 20-foot long 21-inch diameter tube to wipe down all of the seawater on the way down, and oil the tube on the way back. It was truly creepy in there. At the far end, you know there is nothing between you and the crushing depths but the breech door. This door is interlocked such that it cannot be opened so long as the muzzle door is open. In the past, junior personnel were hazed by having the muzzle door shut and even locked once they went in. Of course, following that, it would not take much to flood the tube and drown them.
Apparently, this prank had happened with such regularity, and the victims had been so scarred by the experience, to include nearly killing the perpetrators when they got out, that the Navy wisely banned the practice. This was accomplished by making a fleetwide pronouncement that anyone who shut the muzzle door on another sailor would be promptly court-martialed, no questions asked.