Bobby, a struggling college student, was entering his favorite grocery store to buy a few things. A shabbily dressed young woman, who told him that she had no money and needed a few food items to eat, approached him. She suggested that Bobby buy some steaks for grilling and return with her to her apartment for dinner. Bobby told her that he did not have much money, but the young woman persisted and went into the store with him. While in the grocery store, Bobby put some steaks and other items in his backpack and, without paying for them, carried them out of the store in preparation for dinner. Unknown to Bobby, the young woman was actually an undercover police officer who arrested him for shoplifting. What is Bobby's best defense?