I have three principles: the best policy: endure to spoil him, but be polite and restrained, and be careful not to let yourself go it alone. There are all kinds of birds in the university, and someone will take care of him sooner or later. If your patience can ruin his reputation, I think you won. Zhongce: Please have a meal, but if he is really the kind of person who has you without me, I don't think the effect is good, and I don't think Brother Questioner is the kind of person who is good at communication. Bottom line: Turn against him, report him to the dean, director or instructor, or you know the cadres of the student union or the monitor of other classes, and let him know that you are not easy to bully. The premise is that you have the ability and popularity, and the reason why you don't recommend this road is the same as the last sentence of Zhongce.