The following is an ad from a real-life newspaper which
   appeared four days in a row - the last three hopelessly trying to
   correct the first day's mistake.
   MONDAY: For sale: R.D. Jones has one sewing machine for sale. Phone
   948-0707 after 7 P.M. and ask for Mrs. Kelly who lives with him cheap.
   TUESDAY Notice: We regret having erred In R.D. Jones' ad yesterday. It
   should have read "One sewing machine for sale cheap. Phone 948-0707
   and ask for Mrs. Kelly, who lives with him after 7 P.M."
   WEDNESDAY Notice: R.D. Jones has informed us that he has received
   several annoying telephone calls because of the error we made in the
   classified ad yesterday. The ad stands corrected as follows: "For sale
   R.D. Jones has one sewing machine for sale. Cheap. Phone 948-0707
   after 7 P.M. and ask for Mrs. Kelly who loves with him."
   THURSDAY Notice: I, R.D. Jones, have no sewing machine for sale. I
   smashed it. Don't call 948-0707 as I have had the phone disconnected.
   I have not been carrying on with Mrs. Kelly. Until yesterday she was
   my housekeeper but she quit!