Man. I’m glad this never happened to me in class.
Holly Thompson was in politics class. She says she wasn’t bored, but at any rate, she yawned, and her jaw dislocated and stuck open! There she was, mouth stuck open in class. There’s no way she could say she wasn’t yawning.
After neither her classmate nor the school nurse could get her yapper to shut, she had to go to the ER. Here’s a cute little video summary of what happened to her.
Oh god I just yawned. Am I ever glad my mouth closed again.