Thelma Johnson is a single mother raising two teen aged children on her own. Mrs. Johnson calls a locally owned Italian take-out restaurant and places an order for carryout two or three Friday evenings per month before she leaves work. She almost always orders the same thing: a large bucket of spaghetti and meatballs, three tossed salads, and an extra order of garlic breadsticks. She appreciates the convenience of not having to cook after a long week at work, and her kids love Italian food. On this particular Friday night, when Mrs. Johnson gets home, she realizes that the restaurant has forgotten the extra order of garlic breadsticks, even though she paid for them. She immediately telephones the restaurant and speaks to a counterperson named Mary. She explains the situation, and Mary responds, “No problem. Just remind us of this the next time you come in, and we’ll throw in a free order of breadsticks.” A few weeks later, Mrs. Johnson places another carryout order, and when she arrive