Needing to wait 10 minutes before and after classes have started to use the restroom.
My adolescent body with developing Crohn’s Disease did NOT take kindly to this rule and got into fights with the bathroom monitor often (someone who would make sure nobody was in the bathroom for too long doing drugs, having sex, and other things of the sort).
Thankfully the Principal had a heart of gold and gave me a special pass to use his personal private bathroom which was so nice and clean. In a high school of 5000 teenagers, being able to poop in peace at the rate you go with Crohn’s Disease made my life somewhat less sh*tty (pun intended).