Ooh, a few things (in no particular order):
9th grade math: I would sleep through the whole class, my friends would pile all my work on my desk, i'd wake up about 10 minutes from the end of the class, do all my work, turn it in, get my homework, and leave. I got all A's. My math teacher thought I was cheating, so gave me about 3 times as many tests as everybody else, which I, of course, passed. I didn't mind though, because the rule was, if you get a test that day, you don't get any homework.
9th grade everything: My teachers stopped calling on me because I would always correct them, and they were sick of getting embarrassed on a bi-hourly basis.
10th grade: I left the school I was in at 9th grade, and went to a charter school. The school was complete hell, with little extra bits of hell stapled on just to make us more miserable. The principle was embezzling money from the school, and the teachers weren't getting paid, which made them mean, although some of them were total assholes in the first place. I left that school at the end of that year, and the beginning of the next year, at my new school, I learn that the school lost my entire 10th grade records. I'm in 12th grade now, and am going to have to do an extra year of high school just because of that f*****g school. I almost feel like I could make a fairly reasonable case and sue them for emotional distress. I'm not in the mood, though, and haven't been for the past 2 years. I might get the urge to, and hopefully that happens before the statutory maximum expires.
Maybe more, if I think of some.