Sir: Why did the chicken cross the road?
Andrew: One does not know, Sir. Possibly a predator was behind the chicken, or possibly there was a female chicken on the other side of the road if it was a male chicken; possibly a food source, or, depending on the season, it might be migrating. One hopes there's no traffic.
Sir: To get to the other side.
Andrew: "To get to the other side." Ah. Why is that funny? (Bicentennial Man)