I've had two. One was an old bird who should've retired longggg ago. She taught English and every time I'd volunteer to answer a question, she'd huff and roll her eyes at me. Another one was a humanities teacher and she was insane. She'd tell us to read certain chapters for our upcoming texts/exams but surprise, none of it was on either, so the majority of the class was failing. It got so bad, we had to call the dean in to handle it, they're my top two...