You shouldn't make false accusations about someone.
Robert is a high school student who isn't too fond of his math teacher, Mrs. Greene.
Robert wants to go to school without having to see Mrs. Greene.
Robert speaks with his guidance counselor, telling him that he won't succeed if he has to continue on in Mrs.Greene's class.
Robert files an anonymous report to the school saying that Mrs.Greene hits her students, although she never has.
Robert's guidance counselor switches him to a different math class taught by someone else.
Mrs. Greene is temporarily suspended pending the investigation of the claim.