A boy was feeling very nervous about his first date, so went to his father for advice. “My son, there are three subjects that always work with women: food, family, and philosophy.” The boy picks up his date and they stare at each other for a long time. The boy’s nervousness builds, but he then asks:

"Do you like potato pancakes?" "No," comes the answer, and the silence returns like a suffocating blanket. "Do you have a brother?" "No." After giving it some thought, the boy plays his last card: "If you had a brother, would he like potato pancakes?"