This was in the 70s (yes, I'm *that* old) and my 5th grade teacher hated me. And it wasn't a subtle hate but pretty much everyone saw it, including the staff. In the two months I was in her class she sent me to detention three times for things I didn't do, graded each of my tests with an F, claimed I never turned homework in when I did, etc.

She went that one step too far when someone wrote something nasty about me in the school cafeteria, and she called me up in front of the class and berated me for writing it (!) until I broke down in tears and she sent me to the Principal's office for causing a scene. Net result, I was transferred to another teacher's class and...I found this out much later...she was given a warning and told if she did anything like it again they'd fire her...I apparently wasn't the only student she'd done this to.

No idea of what happened to her, but I hope she lived a long miserable life where she didn't have kids to torment.