Nahmie notes:
You know, I don't recall any of that crap in the Marines. Stuff we did was meaner, I guess. Start with a thing called a bomb tester (big ol' maneto set-up to test helicopter sparkplugs, so you can guess how long ago). Put your hand on the magneto as you start the thing. The first person who walks close enough, point your hand at the back of his neck (no hers in our shop) and watch the spark leap about 6-10" with a nasty crack. It didn't hurt much, but people quickly learned to stay well away from anyone who might grip the tester.
After a time, we couldn't even get the paint shop guys, who seemed to be on a different planet (lacquer fumes?), to come "Check out this weird looking result."
Charlie Self "If you want to know what God thinks of money, just look at the people he gave it to. " Dorothy Parker