The Fox and The Grapes
A fox was once very hungry and went in search of some food. He searched everywhere, but he couldn't find anything that he could eat. Finally, with his stomach rumbling, he came upon a farmer's wall.
On top of the wall were the biggest, juiciest grapes the fox had ever seen. The rich purple color told the fox that they were ready to be eaten. The fox jumped high in the air to catch the grapes in his mouth, but he missed. He tried again and missed again. He tried a few more times but missed each time.
Finally, the fox decided to go home all the while muttering, 'I'm sure the grapes were sour anyway'.
Moral of The Story
It's easy to hate what you can't have.