Leah bumps his arm with a fist.

"Hang on," she says, and turns away slightly so she can flip the homework she was marking into one pile. "There. That's corrections out of the way. They can have their first drafts back tomorrow - hold this."

She presents him with the deluminator while she sets about doing something that's rather digusting, but she doesn't care - her eyes are itching again and they have to come out.