I was once that but when I was in education and studying history as one of my courses. My teacher was a complete dick but because I really didn't give a shit and blanked him out, he focused on me but as I said, didn't give a shit.

Fast forward, I dropped that to focus on other subjects (it's when I REALLY got into philosophy), short time after my former classmates were saying how much worse it was now in the class since I left since he was now harder on the rest of them, probably searching for his new folk devil.