What is the most pointless rule you have came across in your school or college?

The most pointless rule that I have come across in my college is that of a 75% mandatory attendance for clearing a particular course, even though the lectures are not beneficial at all. What’s the point of sitting in the class for the sake of attendance when in the end, it’s you who has to teach himself a particular course?

Seems quite pointless to me. Would have definitely made sense if the teachers were capable at all but the truth is that they can’t teach well at all. Sitting through hours of lectures is hence no less than a huge pain.