you're stupid also

I can not stand this person.She is oblivious to the world around her, and has no idea the impact she is making on others, as it is not a good one. not eve a fairly decent one at that. I am more than fine with teachers being annoying and frustrating, but randomly singing in the middle of class? i can see some teachers doing that, but i feel like for them it is almost expected. this woman was probably just released from a straight jacket.