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”
I once broke my neighbor’s sliding glass doors with rocks.
A neighbor kid and I were really stupid when we were 9-10 years old, and my next door neighbor’s house had been empty for a while because they rented it out. So we thought it would be a good of fun idea to go through the broken fence between our yards, and chuck the decorative rocks (pretty big ones, not pebbles) at the glass and make it shatter. We broke one open, and then another, then went inside to check out the empty place. We started to go at the third one when my brother came outside and heard the loud smashing.
Cops were called, in the end both of us were very apologetic and told them everything.