2. He knocks on teachers' apartments on after school hours and does God knows what...

What do you mean, this headmaster brings green tea with him and insists on making the teacher a cuppa? Then he makes sure that the teachers inventory is intact and her PC works? Or does he get out his whip and insist she thrashes him? If the latter Hothot is a den of iniquity and a very good gig for shy young ladies to develop.