Speaking of Stringy Thongs, I was a reminded of a major pet peeve when watching...

When teachers are about to start a new topic of discussion and then the bell rings and they're yelling over bustling students, "don't forget to read chapter 3! This will be on the test!"

It happens in every goddamn high school scene. No teacher ever teaches to the bell, let alone start up a new lesson before it. Stop with that nonsense.