Lucky actually being given 3 minutes. We get out of a class when the bell rings and are expected to be standing outside our next class at the same time. Literally impossible. My school has a uniform policy and measures the size of heels on girls shoes with a ruler (

) then puts them in detention if it's like 0.1cm more than it should be.
We're also not allowed to use our phones/iPods/anything within the school building at any time or else you get a detention on Saturday.