La Doof Kitton likes to run. He runs around the house a lot.
And sometimes, he runs under the couch. He climbs under the couch and rolls so his back is on the carpet and his feet are up in the air. Then he sticks out all of his claws, digs them deep into the underbelly of the couch, and runs around under there.
It's incredibly difficult to get pictures of him doing this but, I tried...(Please not El Gato enjoying the sunbeams and completely ignoring her annoying baby brother. And also note some of the blurryness caused by trying to get a picture of a wee gray perpetual motion machine):