What is the dumbest thing you did when you were little?

Hmmmm... So, I have 2 stories. The first one isn't really dumb but it's cute. I have a scar on my chest from heart surgeries because I was born with a heart defect. I've had the scar my whole life. I used to think everyone had a scar on their chest.
The second one is actually the stupid one. When I was in 2nd grade, it was leap year I believe, so my teacher told us that she once had a student who was born on leap year. And the teacher said the student was technically a year old See More▼ because of that. I used to think people who were born on leap year only aged every four years.

I was such an idiot!

when i was 3 years old i ate Glue thinking it was ice-cream

i walked around the playground slapping kids arms and said “dangit i missed the mosquito” in my opinion it wasnt dumb but the teachers thought it was

In my case,fart and blame it on somebody,then poop on myself and blame it on somebody...barfs...