My Bella is a "fetch addict" She will fetch until the cows come home! Sometimes in the heat she will be panting and her tongue is hanging down to the ground and she still wants more! Of course this is all when we use balls. When I throw her famous "Hurl-A-Squirrel" she will catch it but refuses to bring it back. We usually wind up playing a game of Pam chases Bella until Pam's tongue is hanging down to the ground. Then Pam gives up and gets Bella a doggie biscuit and she surrenders the Hurl-A-Squirrel.