Man I remember that HC very well because she called to tell me about it and I was CTFU.
That was some funny isht.
But speaking as a former teacher, those bathroom breaks are annoying and intrusive to the instruction period when you have more than 5 in a class period. And yes it was worse after lunch. There were some students I could set my watch by as to when they would ask for the pass. Then I had like 75% of my students who NEVER asked for the pass.
Oh and you have some students who ask for the pass every class they have per day. You cannot tell me that is bladder related. That is go out in the hall and kick it time. Please believe it, I used to have hall duty.
I used to give my students 3 passes per grading period. Any left over and in my handwriting were traded in for extra credit. Of course those who never needed the EC always still had their passes and in better shape than what I gave them in, LOL.