Mine was our CRT TV. I would rapidly push the power button on and off because I thought the picture coming and going looked cool but eventually it fell inside of the TV. I think I later stuck a magnet on the TV.
Not looking for Reddit answers like “My parent’s marriage”
An electric keyboard imported from outside of soviet block. I was too young and stupid to understand the power brick and conected it directly to mains. A shower of sparks tought me an important lesson about electricity and voltage.
Oh man, that reminds me of the time that I was trying to record a demo for my friends band. They had a PA system, and apparently the 1/4 cable that went from the main speaker to the other carried power. I didn’t know this. I plugged it into the sound card on my PC. I’m super lucky that all it did was fry my sound card. It died so fast.