Copycatting
President Calvin Coolidge once invited friends from his hometown to dine at the White House. Worried about their table manners, the guests decided to do eveything that Coolidge did.
This strategy succeeded for awhile, until coffee was served. The President poured his coffee in the saucer. The guests did the same. Coolidge added sugar and cream. So did his guests. Then Coolidge bent over and put his saucer on the floor for his cat.