As he informs them that the "scum of Europe has gravitated o Casablanca" and warns them to "be on guard" for "vultures," he lifts the gentleman""s wallet.To begin the inquiry, Dr.Dixon announced, to everyone""s astonished disbelief and laughter, that "our chimpanzee friends are ready to answer your questions, too.Screenwriter Harry Behn based his script on a story by author Laurence Stallings, who based his writing on his own gritty wartime experiences as a Marine serving in N.She entered the room using a detecting instrument to determine where the object was hidden near a bathtub, and they engaged in flirtatious conversation in the tub itself.