O'brienism
The worst math teacher in the history of the universe, who probably taught math to aliens and they still hated him.
He’s so bad at teaching, he sometimes forgets what he’s teaching and just stares at the board like it’s his enemy.
He loves giving zero as a grade because it’s the only thing he knows.
He’s so creepy, he probably followed kids home after class and asked them if they wanted extra credit.