 Whistler is seen eating a box of "Capn Crunch". In the 1970s,  "Capn Crunch" came with a small whistle in the box. A "phone  phreaker" called "Captain Crunch" (John Draper (VIII) (qv))  discovered that this whistle could be used to get free phone calls  (one of many components in the practice of "phone phreaking", which  digital phone switching