The person who asks 456 questions a minute, with each question being more off-the-wall than the last? I mean most questions are so far in left field that the entire class and instructor are usually like huh?
The "attitude" who is just constantly exuding attitude, the eye rolling, the sarcastic tone of voice, the smart remarks (to instructors and classmates)...but usually sweet-as-pie when they need something from you, i.e., to copy your notes, a pencil, etc.
The "I-don't-do-it-that-way" expert. Will ask you what/how you're doing something and then proceed to berate you because you are doing it differently from the way they would do it, therefore it's wrong, time-consuming, etc. :angryfire
I feel like I'm forgetting someone, but you guys covered the other 50% of my class :chuckle