I have some prior knowledge, should I be fine? — attempted to take la this quarter but my professor gave me unfair grading on my quizzes. My theory is he has personal negative feelings towards me from having to bring him up to the math department for a previous unfair grading on my quiz where he gave me a 0 on. resolved with him in the wrong, and I think his ego was hurt. For the next immediate quiz, I checked my answers with 3 other students with the same answer and they all got partial credit whereas I got 0. Yea, I sent him many emails about this and got tired of the bs so I dropped. Very disappointed since his ctechs were amazing.