You and Joe Jones, your neighbor and friend, bought lottery tickets at the corner drugstore. While watching the lottery drawing on television with you that night, Joe leaps from the couch, waves his lottery ticket, and shouts, ‘‘I’ve got the winning number!’’ Suddenly, he clutches his chest, keels over, and dies on the spot. You are the only living person who knows that Joe, not you, bought the winning ticket. If you substitute his ticket for yours, no one will know of the switch, and you will be $10 million richer. Joe’s only living relative is a rich aunt whom he despised. Will you switch his ticket for yours? Explain.