Stupid things you did when you were young thread

Ok, as a result of a Q&A discussion... I'll start with what I said there: I've used bolts in place of fuses (melted 1/2 the entire under dash harness. Ran a stock '71 318 with a stock intake, adaptor, ans 750 Holley with single exh anda Sonic Turbo muffler. Painted valve covers with "chrome" paint. Made a shield to deflect all the leaking oil around the crossover pipe instead of fixing the leak. Shocked myself blind for 30 seconds because I sweatted and touched the coil on a Jacobs energy Team.. (also included hand/fingers going into cooling fan)

So what did you all do, whether as dumb young ignorants (like I was) or just being stupid? Gotta be some stuff.