She 's outside tied up for the rest of the day . I have spoken with my vet about this and we almost came close to having a nasty argument over it . He really wants me to believe that my dog ... who eats one of the most expensive well balanced dog / puppy you can buy ... needs the extra vitamins that is found left over in my cat 's ( who eats the cheapest cat food you can buy ) POOP ! I know I do n't have a veterinarian degree - but to me it sounds like complete NONSENSE !
Question: Why does the narrator question the vet 's opinion ?
The answer to the above question:


Because the dog eats high quality food .