My high school teachers are pretty cool so I don't really have anything to say about them, but holy forget I hated my 4th grade teacher, every week she would send me to the principal's office for some stupid thing that wasn't even a big deal. I became known as a "bad kid" in my elementary school so teachers always watched me and I got in trouble for stupid stuff because I was labeled a "troublemaker".
Also in middle school I had a VERY destructive russian friend, once he took my binder and stapled the stuff out of it (like there was atleast 50 staples in it), and my english teacher just looked at me like I was stupid and she said "Why did you do this to your binder?" and I just sat there and started laughing my ass off, which I guess she thought I was high or something so I got sent to the principal's.