I had a friend once with a huge mastiff great dane mix. When I sat on the couch for the first time, I noticed dog food between the cushions and thought it was curious.
Then I saw him playing with the other dogs. When he got really excited, he would go get a mouthful of food from his dish and proceed to frolick about, consuming precisely half of the mouthful, depositing the other half in many places.
He was a good boy.