Unfortunately, I do. I can't very well throw them out if they don't have anywhere else to go, and they've moved in.

[He sighs, and shakes his head. On the other hand: it sounds like this boy knows of them, and, as a small child himself, he might be able to talk to them without confusion, booby traps, biting, and things being thrown down the stairs.]

... It's all right for them to stay up there on weekends, but come Monday we'll need those rooms for classes.