I heard this one while visiting family in Texas: I was planning a trip to New York City when Mrs. Dun called me. "I've lost track of my son John in New York City. If you get a chance, could you try to look him up and tell him to call me?" I said I would but I had forgotten about it until I was walking down Wall Street and I saw a building that said Dun and Bradstreet. I thought it might be his office so I walked in. I asked the receptionist, "Is there a John here?" "Yes," she said, pointing to a door across the lobby. I started walking toward it when I saw a man come out of it. "Are you Dun?" I asked. "Yes," he said. "Call your Mom."
(From the "Rest" of RHF)