Confession. I became disillusioned with a teacher of a subject in school, who I was certain had taken a disliking to me.
I tested it by getting hold of a paper which had received an A from another school on the same subject, copying it verbatim and submitting it for my assignment. I received a low grade.
Despite confirming what I suspected, it somehow still wasn't a good feeling.
I attended a catholic high school for several years, and I noticed a pattern. If I submitted an assignment to certain teachers and the subject related to a non catholic religion, I would get a pass, at the lowest score possible, regardless of the quality of the content.
So I just kept submitting assignments on the wrong religions. Write up about a saint? Pick a russian orthodox saint. Write up on marriage customs? Use islam. That way I could never fail.