- 1 German shepherd that likes other dogs.
- 1 whippet that likes other dogs and is friends with German shepherd.
- Throw ball for both dogs.
- Whippet will beat the German shepherd to the ball.
- Whippet will decide to run a victory lap, and the German shepherd will chase him.
- No German shepherd alive can catch a whippet, so they will run a whole lot more than if you just threw the ball for the German shepherd.
- Repeat once the whippet gets done with the ball and delivers it to hand.