Sometimes students just make me happy. The other day, one of my poetry students dropped by to chat, and in passing said that she was reading poems from our anthology that weren't on the syllabus, just because she was enjoying poetry so much. She was, she said, thinking about not turning in the rental copy she had, and paying for it so that she could continue to read poetry out of it.
I happened to have an extra copy, so now she has her own, new and clean copy, and can turn back the rental one.
Some days, I really need that little spark of joy from a student. And I got it.