In my final class today (from 4.30-6.30pm) we had no lights. They were off when we walked into the classroom and no-one, not even the tutor, could find the switch to turn them on. We spent the whole lesson using the projector to light the classroom.
It probably wasn’t as funny as I thought it was, I will admit I laughed a lot and nobody joined me, but it was an amusing way to spend the lesson. And I’m glad we had the projector to light the room a bit!