2. Those who prioritize their suttas over their students.
Found outside the campus smoking cigarette after cigarette before and after every class, this type of teacher is amusing. There was a funny incident with a teacher of mine who smoked. You see, in the middle of class, he subconsciously took out a pack of cigarettes and lit one while the whole class stared at him in amazement. It was a full 2 minutes before he realized it wasn’t a board marker that he had taken out.