I've had some jerk-off teachers, but this guy wins.
http://www.brobible.com/bronews/story/teacher-jerking-off-podium-lecture
http://www.brobible.com/bronews/story/teacher-jerking-off-podium-lecture
Meet 75-year-old Paul LaDuke, he has been teaching at a suburban Illinois Christian school for the last 26-years, but unfortunately all good things must cum to an end. The math teacher was fired from his job and been charged with a felony, after he was fired for allegedly masturbating behind a podium while teaching class. A student told another teacher that LaDuke appeared to be beating off while seated at his podium during class. The teacher notified the school administration, which launched an internal investigation and LaDuke was fired on Friday and, on Monday, school officials did the anti-Penn State and notified the local police. Schaumburg police said he might have been doing it for the past 10 years or more.