I was in year 5 (about 11). There was a boy with anger issues and autism who really liked pulling people's pants down. At my primary school every Monday morning we had a little assembly. I was asked to come up and speak for remembrance day, I walked up with the script in my hand really scared. This kid took this opportunity to jump up on the stage and pull my pants down. Undies and all. My little year 5 dick was exposed to the whole school of 800 people. I never lived it down.