dogcow

dogcow /dog'kow/ n.  See {Moof}.  The dogcow is a
   semi-legendary creature that lurks in the depths of the Macintosh
   Technical Notes Hypercard stack V3.1.  The full story of the dogcow
   is told in technical note #31 (the particular Moof illustrated is
   properly named `Clarus').  Option-shift-click will cause it to emit
   a characteristic `Moof!' or `!fooM' sound.  *Getting* to tech
   note 31 is the hard part; to discover how to do that, one must
   needs examine the stack script with a hackerly eye.  Clue:
   {rot13} is involved.  A dogcow also appears if you choose `Page
   Setup...' with a LaserWriter selected and click on the
   `Options' button.