Have you ever seen an honest man angry?

The students in our class are quiet and honest. A short boy is always bullying her, stepping on her, throwing things and finding fault with her. We can't stand all kinds of troubles, and she doesn't say anything. Just yesterday, the boy on duty mixed her feet again. She threw a dustpan of garbage at the boy and threw it away! Yes, it flew! At least one meter was flying ... and then after a series of actions, she continued to sweep the floor as if nothing had happened, which surprised everyone.