Pat Frank

Roger Willoughby is considered to be a leading expert on sports fishing. He's written books on the subject and is loved by his customers in the sporting goods department at Abercrombie and Fitch, where he works. There's only one problem however: he's never been fishing in his life. When the store owner enters him in a fishing contest, mayhem ensues. (imdb)

A Marine officer tells his squad the story behind a bottle of liquor that he always keeps with him but never drinks from. (imdb)