Allergic Pup

Tucker's allergy results are in and he's ecstatic!  I know this is odd considering he's allergic to potatoes, barley, beef, rice, grass, and dairy.  He's thrilled because this is evidence that he can no longer eat dog food.  Human food only.  He's actually eating better than I am.  His dinner tonight included green beans, carrots, ham, and a banana.  If I have to feed him like a child, is there any possibility I can claim him as a dependent on my taxes?