We had a cat who would fetch a kitteh toy. He was hilarious.
Two of my kitties like to get on my lap... It's fine if I'm watching TV, but working or eating they learned to lay down immediately on my command (instead of walking back and forth, standing there being in the way). If they didn't lay down, I'd kick them off...
Well, I started telling them to lay down when annoying guests and being in the way... they did!
Since my house is unfair to dogs (a lot of stairs, not a complete fence) kitties rule the roost.