fetch

lately gray scrooge and i started playing fetch. he has a bunch of rubber balls that he can catch with his mouth. i throw a ball for him, he runs after it, catches it in his mouth, and brings it back to me. we play like that 10-20 times before he gets tired and then he just lays there with his ball.
once a week i have to go around and find all the balls that he lost under the refrigerator, oven, dresser or couch.