
Once upon a time there was a grumpy old dog named Bert. He was always grumpy and never liked to play. One day he was walking around the park, when he saw a big puddle of water. It was the perfect size for a swim! 
Suddenly, something came out of the water - it was a frog! "Ribbit ribbit," said the frog. Bert was scared, so he barked and barked. 
The frog got very scared of Bert and started to scatter away as fast as he could. Even though Bert was grumpy, he thought it looked like fun. He jumped into the puddle and started scattering around too. 
For the first time, Bert was happy and having fun! Finally, he knew what it felt like to play.
