theres always that thing called first impressoin thing. i had a teacher once, he was really funny, made alot of jokes that even highschool kids could relate to. well, i remember handing in a assignment maybe spending 1-2 hours on it? i got an 80% on it, and for the rest of the semester, no matter how much effort i put into something or how much time i put iinto it i still got the exact same mark. the same thing went for other people with lower marks, no matter what they could raise their mark. the mark wouldnt EXACTLY the same mark, or else what kind of teacher would that be, but it would be plus or minus a couple percentage, an average of the mark you got initially.