King Khosrau loves to eat fish. One day, a fisherman prsents him and his wife Shirin with a huge fish. The pleased King rewards him greatly with four thousand dirhams, but Shirin tells him that he made a mistake, because now his courtiers will all compare their rewards to the fisherman's. She says he needs to get the money back from the fisherman, and has him called back. Her plan is for Khusrau to ask whether the fish is male or female, and whatever the answer, say that they wanted the opposite.