Raising your hand
I'm one of those people who raises their hands a lot, in class. Yesterday I raised my hand because I knew the answer, but my teacher wouldn't pick me. I sat with my hand raised for litterally 8 minutes, because no one else knew it. So they had to look in their books and shit.
Also, when the other students for once do know the answer, they just yell it out loud so the teacher can't pick the ones with their hands raised. This really annoys me.
Does this happen to you? And have you had any relating experiences?