It is rude to be violent.
The girl who sat behind James in school kept flicking spitballs at the back of his head.
James wants his classmate to stop bothering him.
James raises his hand and complains to the teacher about his classmate's behavior.
James turns around and hits the girl in the face with his math textbook.
The teacher gives the girl detention and moves her to a desk on the opposite side of the room.
James is suspended for a week and has to talk to the school counselor.