There was one teacher my Soph year that did act rather strangely towards me. She was in her 20's. I had her last period and on more than one occasion, she'd make me stay after school for fucking nothing. Like, other students could cut up and they would just get yelled at. If someone dropped a pencil, I picked it up and handed it back to them saying, "Here ya go," she'd immediately tell me, "No talking, stay after class!"
So, I'd stay after class and she'd just sit reverse in the desk in front of me and talk to me... like normal conversations and shit. No scolding... she'd never even mention the excuse she used to make me stay. And, as a punk, of course I had silly spiked hair and stuff, so she was always playing with it. I'd miss the bus and she'd keep offering to drive me home, but I literally lived a mile away, so I just walked home after she let me go. She'd keep me for almost an hour.
That happened 3 times, then she got fired. She was only around for about 2 months. I think she told the principal to go fuck himself... or at least that's what the story was. They didn't agree on her grading scale.
But, nothing sexual ever happened, just some flirtatious contact.. About 6 years later or so one of my friends said they met her at a bar and banged her.
I guess I just struck out looking. I had a girlfriend at the time that I was ridiculously in love with, so I don't think I would have done anything even if she got super aggressive. She was fairly attractive, though.