 However, Dortmunder is not "always" unlucky, and in some novels and stories he and his crew make out quite well.Dortmunder has occasionally used the alias "John Diddums" and tells anyone who asks that it's Welsh (to which they usually reply "Ah" or "Oh"); he came up with the name on the spur of the moment in the short story "Too Many Crooks" (1989) and dislikes it, but now uses it involuntarily in circumstances that preclude using his real name.The motto of his family crest (which he admits he stole) is ""Quid lucrum istic mihi est?""