Bewildered by the tale, and fatigued by the busy work, you float away into the depths of your mind. Thoughts flit in and out of your head at random, and you start paying less and less and less and less and less and less attention...
With a start, you're woken up by a sharp voice.

The office worker in charge of your detention is not impressed that you fell asleep on the job, and you think she must have been personally insulted because she'd been talking to you at the time.
"I've had enough," she says, and marches you to a room labelled as the dean's office.
Left outside, unable to defend yourself to the dean, you hopelessly await your sentence.
It's not long before the dean comes to lecture you, but it is a very short one.
The gist of it is this: you are expelled.