My school, unlike other schools, only has something like a three minute break between classes. This will never do, so I usually poop before school. And this usually works, but sometimes I'm late or I can't go before school, which then becomes a nightmare. When this happens, I know I'll have to go during school, and that I won't be able to hold it until lunch. But that risks punishment, because our school doesn't give us enough time to go between classes.

I go at least once a day. Maybe twice. I need to be able to control *when* I go, or else I might shit my pants in class or something. Any ideas?