Here that's insanely hot,
Tbh, I'd be straight into the school playing fuck if I had a kid and they came home and told me they'd be punished for that. Our school had the same rules, same type of person in charge , some summer days were insane, but shorts weren't allowed we didn't mind to much that being said, we were still out running like idiots all the time and we had access to water machines everywhere.
Example of the guys rules, you had a full weeks detention (staying inside with the head deputy every break and lunch time) if you wore white socks instead of black socks. You'd be allowed to go get lunch on the first day, but he'd escort you there and back, then tell you to bring pack lunch rest of the week or go without any good, then made you write lines. The following break / day he'd either make you re write the same section over and over to maximise boredom, or give you another weeks detention if you hadn't finished copying up a book.