My teachers mostly just gave up and let me read since I wasn't breaking anything or hurting anybody. I did get some hassle for not paying attention (because I'd finished the assignment already, and I was reading), but I don't remember it being as bad as it was for you. The read-aloud bits were boring, but I think we usually went around the room in a predictable pattern, so I could prepare.

I do remember one teacher bemoaning the fact that I didn't bother to record everything I read for the "who's read the most" thing. So I did record everything for about two weeks. She sort of freaked out at the fact that I had read that much and she hadn't heard of any of it (she called me on it and I pulled out the books - yes, I know you don't read science fiction Mrs. BoringTeacher. I do. Yes, I do know all those long words and yes, they are spelled that way) and that it pointed out all too uncomfortably that I knew more about a lot of things than she did. She left me alone after that.