A man walks into a bar and sees a sign that says, "If you can make my horse laugh, you can have free drinks all night." The man, always up for a challenge, asks the bartender where the horse is.
The bartender points to a corner of the bar where a sad-looking horse is standing. The man walks over to the horse and whispers something in its ear. Suddenly, the horse bursts out laughing, rolling on the ground and snorting with delight. The man turns to the bartender and says, "Looks like I win, can I have my free drinks now?"
The bartender nods in agreement and the man starts to enjoy his free drinks. As the night goes on, the man notices that the horse is still laughing uncontrollably in the corner. Curious, he asks the bartender what he said to make the horse laugh so hard.
The bartender explains, "Well, you see, no one has ever been able to make that horse laugh before. But you did it! So, I have to tell you what you said. You whispered in his ear, 'I have a bigger carrot than you.'"