You know the one, every school had one. The one that was more like a drill sergeant than a teacher. In my high school she was the girls gym teacher. The kids all called her "Jan the Man". Not very nice, but uncannily appropriate.
Miss Floppsy keeps everyone in formation around here. Doesn't matter what species you are either. You dont' dare get out of line when Miss Floppsy is around. Even the roosters are afraid of her.