To try to redirect this to a more pc topic:
What was the strangest and/or most embarrassing punishment you were ever subject to in school?
Mine: In HS, my history teacher was a catholic school teacher who taught in Yeshiva in the afternoons. He once punished me by having me stand with a 1000-page world history book in each outstretched arm, and my knees slightly bent. While I was too naive and stupid to realize what was going on, our limudei kodesh principal happened to walk by the classroom, and realized that I looked like I was being crucified - literally.
He walked into the room, and explained to the teacher that while it was okay to punish the students who misbehaved, it was NOT okay to use that specific punishment in a Jewish school.