Detention is for bad little boys that disobey their teacher. It seems you still want to show your ass even when you are being punished. No matter, I am known for breaking young bucks such as yourself. It’s been an hour or so and surely by now you must use the bathroom. Just as I suspected. But I won’t let you. And don’t even think about escaping, the door is locked from the inside. I have hidden the key. That’s right, no way out… and you must pee. It would be a shame for you to piss your pants in front of the rest of the delinquents.