Guy would return after making sure all the windows were closed. Seemed he was worrying about nothing, as he hadn't found any of them open. So far as he could see the rooms were relatively, neat. He couldn't help himself from fixing bed sheets, or moving things a couple inches here or there.
So it would take maybe ten minutes for him to return, he got obsessive over small things occasionally. 

He would return after and miss all the chain rattling.
But he did hear some of the noise in the background.

"Did you move something....?"
He'd ask on his return.
Before grabbing a plate, and eating off of it.