Oh, Sol, that's awful.
My art-teacher from last year was awful.
There were three boys in the class who misbehaved and were complete t*ts (actually, they still are.)
These boys completely disrupted the lesson, but our teacher was intimidated by them, and therefore didn't try to discipline them.
Instead, she took it out on the rest of us. Noone learnt anything, and several people have gone into year eleven only to find out that they need some of the work from last year, that they didn't complete cos our art-teacher told them not to bother with it.