Before he touches anything
He walks into the house, stands in the entryway and raps twice on the wall with his knuckles. Then he waits a second, listening, before he touches anything. He does it in houses he isn't going to fix too, and in his mother's he does it at the same spot, next to the back door frame. Nobody remarks on it anymore. If you ask him what he is listening for, he shrugs and moves on.







