Red Sammy, "the fat man with the happy laugh" (27), is the owner of The Tower, the BBQ restaurant where the family stops for lunch. And his dialogue gives us the title of the story:
"A good man is hard to find," Red Sammy said. "Everything is getting terrible. I remember the day you could go off and leave your screen door unlatched. Not no more." (43)
He encounters a person of like mind in the grandmother—who's also shocked by the state of the world—and appears to be the only person in the story who enjoys her conversation. The grandmother calls him a "good man," which seems fine by him. He also owns a monkey.