Imagine the following scenario. Smith invites Jones to live as a boarder in his spacious home upon the condition that Jones will pay his share, keep up his end of the chores, and abide by the rules of the household. Jones is thrilled to have found such a nice place to live and signs the lease without a moment’s hesitation. For a time, things go well; domestic affairs run smoothly. Then, one day, Jones steals the toaster oven from the kitchen and sells it for some extra cash. Smith wakes up the next morning hungry for a toasted English muffin only to find the appliance gone. He calls a house meeting where he confronts Jones, but Jones is evasive. Smith tells him that if he confesses to the theft, he will simply have to pay back the household for the toaster. Eventually, Jones confesses and buys a new toaster oven for the house. Time passes, and although things in the house are tense for a while after Jones’s indiscretion, he goes on to become a model housemate. When he gets married, his new wife moves into the house with Smith’s blessing. They have a baby girl, and Jones adds a nursery to the east wing of the house at his own expense...