The hungry fox

There lived a fox in a certain jungle. He was very hungry one day. He came out of his hole and began to move about in search of some prey. He happened to pass by a vineyard after some time. He saw big bunches of ripe grapes hanging down the wall. His mouth began to water, and he decided to eat some. He jumped at them again and again, in order to catch them. But his efforts were all in vain. When he got dead tired, he gave up his struggle saying, “The grapes are sour”.
The grapes are sour.
People excuse to dislike what they cannot get.