Donkey

A king wanted to improve the mood of his favorite donkey, who was depressed,
so he put out a proclamation that he would pay anyone in the kingdom 200
gold pieces if they could make his donkey happy. Many tried, all failed.
Then a jester went in to see the donkey, and when he came out, the donkey
was indeed happy - so happy in fact, that he was laughing heartily. The
jester got the gold, but a few days passed and the king couldn't make the
donkey stop laughing. So he put out another proclamation saying he would pay
500 gold pieces to anyone who could make the donkey stop.

The jester returned, went in to see the donkey for a few seconds, and when
he came out, the donkey was crying. The king asked the jester how he did it.
The jester said, "I will tell you for another 200 gold pieces."

When the jester had received his gold, he revealed, "On my first visit, I
told the donkey that my d!ck was bigger than his. This time I showed him."