None. Anything not completed during the lesson is added to the homework.
Clickbait. Edit: Added a space which triggered someone.
Because he doesn't have a brain
No one knows, they wait for it to burn out and follow it around for twenty years.
Zero.
Well, first off, it's called a lamp...
Just 1, but It'll take 7 episodes for him to do it.
He tried, but it didn't work out.
Exorcise books.
Pupil: I made it into a paper plane and someone hijacked it.
A schoolteacher says "Spit out that toffee" and a train says "Choo choo."
Because she had an interest in the principal.