A guy walks into a bar and sees a sign that says, "Free drinks for anyone who can make our horse laugh."
The guy thinks to himself, "I've got nothing to lose," so he goes over to the horse and whispers something in its ear. The horse starts laughing hysterically, snorting and neighing with joy.
The bartender is amazed and pours the guy a free drink. As he's sipping on his drink, the bartender asks, "What did you say to that horse to make it laugh?"
The guy replies, "Well, I told him I had a bigger carrot than he did."