"Joe and Bill have been driving buses for over twenty years on the same route, using identical equipment. Joe has a perfect safety record, but Bill's record shows at least one or two accidents each year - unavoidable accidents. John works for a towel supply house. His pal Eddie works as a bread salesman. They have earned the name of the two "unluckiest" guys in the world through their frequent mishaps. Helen and Joan, her next door neighbor, have been driving cars for over five years. They follow traffic rules and pride themselves on being good drivers. Yet Helen is constantly having to justify her accidents, while Joan has never had one. Some people may be "shot with luck" in avoiding accidents, but more often than not there are well hidden psychological reasons why some have accidents and others have none."
Good Reading Rack Service, 1957