
Once upon a time there was a nice dog and a nice cat. The dog wanted to play fetch with the cat, but the cat did not agree. The dog was sad. 
Suddenly, the cat saw a skull on the ground and said, "Let's play fetch with this skull!" The dog did not like that idea and disagreed. 
But then the cat found a nice stick, and asked the dog to play fetch with it instead. The dog was so happy and wagged his tail. They played fetch together and they had a lot of fun.
The cat and the dog learned that they did not need to agree on everything, but they could still be nice to each other. They became best friends.
