The one I liked least was the secondary school physics teacher, Mrs Dale. She had one student in every class who was just the designated failure- and in my class, apparently because I’d missed the first lesson (my parents had taken me out of school with permission for the week for a trip). I found out from other students that it was the same in every class, one student singled out, rarely for any obvious reason.
It was constant low-level bullying, with occasional escalations. The incident I remember most, I’d been off sick the class before and hadn’t been able to borrow anyone else’s notes yet (I think I’d missed the Tuesday class and this was Thursday). Come into the class, and she’s set a quiz on the stuff covered.
She came round midway through the class with them all marked, and when she got to me just started yelling at me- we’re talking spittle flying, right in my face, yelling about what a complete idiot I must be to get such a pathetic score as 6 out of 20. I shouldn’t be in that class, I shouldn’t be in that school, it went on for ages…
The she handed out the rest of the table’s papers back, with a smile and a comment of ‘Oh well, we all have bad days don’t we?’ to the girl sat next to me.
It turned out I actually had the highest mark of the 4 of us.
She also once gave me a double detention for not having my notes in order. I had a grand total of 3 detentions in my entire time at school, and that was 2 of them.
The worst bit was that in parents evening, apparently she gushed about what a good student I was, and my mother- who’s never been much listening to anyone, then decided I was just being silly and making up stories for attention.
The alternate worst teacher was at university, where we had a lecturer in Horticulture, which was supposed to be the main focus of the degree, whose entire class on plant genetics was not only the same one from the school syllabus- just Punnet squares, same as we covered age 15- but he got it wrong.
I heard later that he used to teach at a different campus in the same group, doing the adult RHS classes, but he was so terrible that a student punched him for teaching the course (a national qualification, externally assessed) so wildly wrong that several other staff sided with the student.