Who was your least favorite teacher/professor at school? What was it about them that puts them so low on your list?
A genetics professor in college. He was actually assigned to be my adviser, but I changed quickly to someone who would listen and give sound advice. As for classes, he simply read off his notes. Once he even lost his place and commented that "there was something I was supposed to tell you..." The worst part is that he'd tell us something wouldn't be on the exam and it was. I studied it anyway, because never trust a teacher who says something won't be on the test. If they are covering it in class, it's fair game! Teachers/professors should never say this will or won't be on the test; it's not fair to the students.