A man at a bar is talkin to the bartender and notices a jar full of money at the end of the counter. He asks the bartender "What's that for?" The bartender calmly explains "If you can make the donkey over there laugh, you win the money in the jar. Five dollars a try." The man says "I think I'll give it a shot," and puts in his $5.
30 seconds later the donkey is rolling on the floor laughing. The guy takes his winnings and heads out the door.
The same man walks into the bar about a month later and there's another jar full of cash at the end of the counter. He asks the bartender "What do you have to do this time?" The bartender tells the man "this time you have to make him cry." The man says "This'll be easy," and puts in his $5. The bartender stops him and says "If you win this time, you have to tell me how you made him laugh AND how you made him cry."
The guy walks over to the donkey, and 30 seconds later the donkey is crying his eyes out. He grabs his money and before he could head out the door the bartender stops him, "Hey you have to tell me how you did it!"
The man says to the bartender "I made him laugh when i told him my dick was bigger than his." The bewildered bartender asks "Then how did you make him cry?"
The man says "I showed him."