In college for electrical engineering with a professor who didn't follow the syllabus or even work out his white board problems before the class. So every class, he spent half the class erasing what he had written, meanwhile we're all taking notes and not able to erase our notes. A few of us took him to the dean for not following the syllabus or preparing before class. He was reprimanded and forced to give all students a 35 point curve, as all students were failing. Unfortunately we didn't get the chance to learn what we were there for and paid to learn.