I think Shylah has some Cat in her. She likes to hide behind something and gets all crouched down, just waiting for Starsky to come around and then she pounces on him. She is really sneaky.
As for Starsky, I give my dogs treats when I am about to leave the house as a goodbye treat and I always tell them to be good. Starsky thinks if he doesn't eat his treat, I won't go. So he'll just turn his head from the treat and walk away, while the other two get theirs and run! He has learned that I still go, whether he eats his treat or not.