Grampa's Diet - S6.E27

Kathy's grandfather comes to visit the Williamses, but Grampa must be watched. He is on a very strict diet, but insists on eating everything that's not good for him. After admonishing him and cajoling him, Danny uses some psychology. Danny gives him carte blanche to eat whatever he wishes, but Grampa refuses. He confesses to Kathy and Danny that he enjoys the thrill of the hunt and comes to realize and understand that he must comply with his doctor's orders.