What's is one of the dumbest(non illegal) you have done

When I was in middle school, the boy and girls restrooms were by each other and I was new to the school and was just in a rush to go to the restroom. I ran into a stall and then I heard giggling of like 5 girls so I had to hide for like 30 minutes and be marked as skipping class lol (side note, why the fuck did they talk for 30 minutes)