Yikes!

A gym teacher is facing charges after he allegedly dragged and tried to force her to go into the school pool.  The student didn't want to go in and  he apparently, was not taking no for an answer. It was carried on for nearly two minutes and she was dragged down the stairs and to the pool and some of the other students were visibly upset too, even throwing water bottles and screaming at him.

As a parent, is this ever acceptable? As a teacher is it even worse? What would you say if this was your kid? The teacher was charged with bodily injury to minor and was suspended from work.