D) Fiddley also said its a bad idea to mix a reward system with the bathroom pass. Which I whole heartedly agree.Alright, but you seem to have this concept that bathroom regulation in the classroom is this surprisingly new and tyrannical idea. It serves as a useful mechanism to instill a disciplined, scheduled restroom routine that still allows for emergencies to override it. You largely are able to keep 20+ students in their desk learning rather than up and about with recreational activities.
As far as the teacher goes, I probably wouldn't especially if they changed their restroom pass policy already. Even smart people do stupid things.