What's the funniest or dumbest thing you did?

I had a CD Player with volume control but wanted to integrate it with other sources so needed switching and volume control. Built a passive box with remote controlled switching via top quality relays and a motorised volume pot, bypassing the volume for the CD player. I didn't put any security code on the remote and the sun managed to trick the volume to go up to full, while switched to a radio station, while I was out for some hours. My speakers were totally blown into next week - wires poking through the cones, all caps blown on the crossover - only the cabinets were recoverable. It must have been incredibly loud. And I thought I was saving myself money by not buying a top preamp - quite the reverse.

The absolute dumbest thing was setting the speakers on the window sill of a 2 story apartment so it could be heard outside. Fourth of July party, playing some patriotic music loud when crash, no not a cymbal but one of the speakers falling 16' to the sidewalk below.

Ive never done anything stupid (knock on wood), but my friends dad who got me into hifi punched a hole in the surround of the woofer in his speaker while commenting that it was amazing that hes never had to refoam them yet.

I was in a hurry to put a new NYAL Moscode 300 Maxi into my system. All of this shuffling combined with living in hot Arizona worked up a sweat pretty quickly. As I was plugging in and turning on the Moscode a single drop of sweat rolled off my forehead and fell through the vent slots onto the board and POP, CRACKLE, SNAP. I dove to shut it off and it was too late! I took out one side of the amp!

Jothompson.....I had a similar experience years ago with a Mcintosh 225......I stepped out of the shower and stupidly walked into my bedroom to adjust the volume on the preamp before fully drying off a single drop of water off my hair fell onto the amp and poof!!! luckily it only fried a tube,unfortunatly it was original Mcintosh labled