You shouldn't write people notes when you're in study hall.
Curtis is doing schoolwork in a quiet classroom when his friend Joey passes him a piece of paper.
Curtis wants to respond to Joey.
Curtis reads Joeys paper and whispers to him that they will talk after class.
Curtis reads Joeys paper, writes him back and gives it back to him.
Curtis and Joey are able to avoid getting in trouble at school.
The instructor notices and both Curtis and Joey get detention.