Smitzy is this way too, sort of. She sometimes plays fetch with herself (and my shoes). She'll pick up a screwed up receipt in her mouth, take it to a shoe, drop it in, let it fall down to the toe and then attack the inside of the shoe trying to fetch it out, at which point eventually it'll fling out of the shoe and land a couple of feet away. She'll play with it for a bit and then pick it up and put it back in the shoe, repeating the process.
