To amuse them

I often run around the house and jump and bark and drool to amuse my owners. One of the best tricks I have learned is to get really excited about my "treat."

Every day they shake a bottle and entice me with what is supposed to be a treat. It's a vitamin. It's a musty, dusty, tan pellet of a vitamin.

I know this. But they don't know that I know this and it makes them happy.