What's the most expensive thing you broke as a kid and what's the story behind it?
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"
VHS player when I was a toddler. Was in the daycare and saw a cord, so naturally I pulled it. It was on top of the TV, which was bolted to the wall high up. Shattered on impact. Nearly fell on my head too.