'Oh, he won't care about that.'

Jim notices the dog and grins again, looking remarkably like he's a person who loves dogs.

'Buster! C'mere, boy.'

Buster is an idiot, and comes straight over. Jim fed him for a long time, so he still counts as a good person, apparently. Jim even pats him now, scratches behind his ears, calls him a good boy...literally the most affection he's ever shown the mutt. Buster, predictably, loves it.