A man walks into a bar and sees a sign that reads "Free drinks for a year if you can make my horse laugh." Intrigued, the man asks the bartender about the sign.
The bartender explains that his horse is very grumpy and never laughs, no matter what anyone does. But if someone can make the horse laugh, he will give them free drinks for a year.
So the man decides to give it a shot. He walks over to the horse and whispers something into its ear. To his surprise, the horse bursts out laughing, rolling on the ground in fits of laughter.
The bartender is amazed and asks the man how he managed to make the horse laugh.
The man replies, "I told him that I have a bigger package than he does."
The bartender, puzzled, asks the man to explain.
The man says, "Well, the horse took one look at me and started laughing. I guess he knew I was joking because we all know there's no way a horse could have a bigger package than a man!"
The bartender laughs and agrees to give the man free drinks for a year. The man is thrilled and starts celebrating with his newfound fortune.
But the next day, the man walks into the bar and sees the horse still laughing hysterically.
Confused, he asks the bartender why the horse is still laughing.
The bartender replies, "Oh, that's because he just found out that you were joking about having a bigger package. He's still laughing at you!"
The man laughs along with the horse, realizing that he has been outwitted by a grumpy old horse. And so, the man continues to drink at the bar, knowing that he will never live down the day he tried to make a horse laugh.