When did the teacher lose it in your class and why?

i had a drama teacher who everyone hated, even though she was pretty nice if you were well behaved. students refused to do the activities, chatted back to her constantly and were just plain rude to the point she left the class room crying. it went on for months and she eventually got signed off for bad mental health. some of the terrible students found it hilarious but I felt absolutely awful for her. Hope she’s doing much better now.