A man enters a bar....

A man enters a bar and orders a drink. He gets his drink and notice a jar full of cash sitting behind the bar. He asks "what is the story with the jar of money?" Bartender tells him about his horse he has in the alley. He has a very sober horse that never laughs. For twenty bucks you can try and make my horse laugh. If he laughs you get all the money in the jar. The man thinks for a minute. He gives the bartender $20 and goes out in the alley whispers something in the horse's ear and the horse started laughing heartily. The bartender hands the man the jar full of money and the man leaves. A few weeks go by and the man returns to the bar. He orders a drink and notices another jar full of money. He asks the bartender about the new jar. The bartender explains that since the man made the horse laugh he hasn't stopped laughing. The new challenge is to get the horse to stop laughing. The man thinks and goes out in the alley and comes back. The horse is now crying. The bartender goes to give the man the jar full of money and tells the man "I need to know what you said to make my horse laugh". The man says he told the horse that he had a bigger dick than the horse. Bartender acknowledges that and says "well then how did you make him cry". The man says " I proved it to him".