 In the scene where Penny is seen carrying Rufus the cat off to  supper, Penny grabs Rufus and uncomfortably carries him off in her  arms, pushing him up with her knee as he begins to slip.  Ollie Johnston (qv), who animated this scene, explained that he  did this in order to show the tender affection between Penny and  Rufus, by having the cat be too fond of Penny to complain, since it  would have been easier for Penny to walk away and have Rufus follow  her.