dog's best friend

A few days ago Joe and I got Rupert a new toy.... a stuffed duck. We were apprehensive at first because we don't really want Rupert to eat ducks. That would be horrible actually. Now he takes this duck everywhere. He's already torn a hole in it's wing. After he maliciously plays with his duck, he takes a nap on it. So this is Rupert and his new best friend. Would he take a nap on a real duck is the real question.