I firmly believe that, like cops, the vast majority of teachers (Mrs. E is a retired music teacher) truly want to engage their students, make a difference in their lives, and otherwise be a positive role model.
A very, very few are not wired that way, unfortunately, and when we read about these cretins we're conditioned to believe that the entire profession, like the cops, is bad.
Not so.
But when the bad eggs start to stink, the full might and fury of the law should come to bear. Where and when the unions start protecting those bad eggs, that's when the gloves come off.