An old lady in a plane had a blanket (毯子) over her head and she did not want to take it off . The air hostess spoke to her , but the old lady said , “I have never been in a plane before , and I am frightened. I am going to keep this blanket over my head until we are back on the ground again ! ” Then the captain came. He said , “Madam , I am the captain of this plane. The weather is fine , there are no clouds in the sky , and everything is going very well. ”But she continued to hide. So the captain turned and started to go back. Then the old lady looked out from under the blanket with one eye and said , “I am sorry , young man , but I don’t like planes and I am never going to fly again. But I’ll say one thing , ”She continued kindly , “You and your wife keep your plane very clean ! ”