Power supply hijinks
When Dad was a lad finishing off his Mechanical Engineering degree, he had a course with some of the Electrical Engineering folks working on some project or another. There was a long bench along one wall, and one of the EE's was working on a project at said bench. Lots of wires, lots of expensive looking components, etc. So Dad being the practical joker that he is, manages to talk one of his buddies in on a prank. they run a thin length of tubing from the back of the bench out a nearby window, and Dad has set himself up with the other end of the tubing and a lit cigarette. When said EE flipped on the power supply to his project, Dad's friend signaled him, and he began to blow smoke through the tubing. Cue wisps of smoke seeming to come from the EE's project. Scramble, cut power, signal, and Dad quits blowing smoke. EE proceeds to start tracing wires, examining components, etc. Satisfied that his project wasn't going up in smoke, he flipped on the power supply. Cue the signal, cue the smoke. This went on for 5 or 6 iterations before enough smoke wafted towards the EE that he recognized it as tobacco smoke, not magic smoke. New cue - cue shouting, cursing, threats of grievous bodily harm, anatomically improbable threats, etc....
Biting the hand that feeds IT
