One day a dog was carrying a piece of meat in his mouth. On his way home he had to cross a bridge that crossed a brook. As he crossed the bridge he looked down and saw his own reflection in the water.
Thinking it was another dog with a bigger piece of meat, he made up his mind he wanted the bigger piece of meat. So he barked at the reflection in the water. As he opened his mouth the piece of meat fell out and dropped into the water and was gone.
Moral: Don’t be too greedy!