There's a family story about my great grandmother, a spitfire of a woman. A principal put inappropriate hands on her son. She called that principal out in the schoolyard and whipped him with her horse whip. That's what needs to be done to these teachers, an old-fashioned horse whipping.
Two problems in that:
1. Where in hell can you buy a horse whip?
2. These days the bastards enjoy being whipped!