Our six month old kitten has just started to scratch the linoleum around the outside of his food bowl like he is trying to cover the smell. It's kind'a funny to watch him, but is this a normal behavior or is he trying to tell me something? It's his favorite food since he will only eat Purina Kitten Chow and nothing else, so I don't think it is the smell. We've tried Iams, Purina Pro Plan, and Nutro which all of these he will not even touch.