I used to have a cat, her name was Dusya (or Dulsineya, just like Don Quixote's beloved one). We would play a lot together. One of our favourite things to do was this: I would throw a little elastic ball, and she would kick the ball back with her paw, so I would catch it. Also, we would chase each other until we were absolutely exhausted. Dusya was a very clever cat and I loved her dearly.