Alain Bourget, a math professor at Cal State Fullerton, is in danger of serious disciplinary action from his employer. His crime? Refusing to teach the assigned textbook, which costs $180 and was co-written by the chair and vice-chair of his academic department.
https://www.washingtonpost.com/news/monkey-cage/wp/2015/10/21/college-textbooks-are-a-racket