What interesting thing happened to you when you were sleeping in class when you were a student?

My friend was sleeping in class. The teacher saw it and wanted to hit him with chalk. Unexpectedly, there was no chalk left. So the teacher woke him up and asked him to borrow chalk from another class. He got up in a daze and walked out from the back door, then walked in from the front door, and asked: Teacher, do you have any chalk? The teacher said calmly, no. The student walked out from the front door and walked in from the back door and said to the teacher: Teacher, there is no chalk in other classes!