I have a student who is constantly telling me: "you're not allowed to make us write lines any more!" All of the times, apart from today, the prospect of writing lines was a threat. It was during detention where he had an argument with me about it. My question is: Is there any basis to this argument? Is there a rule that we, as teachers, aren't allowed to make students write lines as a punishment? (My lines were 6 bullet points on what I expect from them in the classroom.