As a teacher - call them or better, go in and talk to them in person and THANK THEM!!!!!!! They put their butt on the line there and are either far too gutsy to worry about it, or unable to sleep at night. They know some parent will complain, it would be awesome if parents actually called them to say thank you, so when the complaint comes thru the principal, they have praise behind them already.

That teacher is awesome. I had a history teacher in middle school who watched "The Wave" (a teen afterschool special) based on a book by the same title. He used that as an experiment in our class - on how Hitler could take over a nation so easily. How to turn everyone against a minority in class. I was the lone rebel who refused to bow down. At the end of the week, the class was floored that they were duped so fully. I hope that experience kept all of them awake from their teen years onward - it kept me awake.

Highly recommend the book The Wave. Also, House of Stairs. They TOLD US...