As far as he could tell he just ended up chilled. It's not the worst thing that's ever happened to him, it's just a (sort of) minor inconvenience. "I'll let you know if I start hovering." He doubts it's going to happen anytime soon.

He doesn't get the joke so he just casually ignores it. Yep, that's the thing to do.

"A little less busy during summer. Less students running around." But he's still busy enough to herd around students.