A guy walks into a bar, He sees a jar full of cash with 'win' written on it. So he asks the bartender how to win it, the bartender says he must make the horse in the stable laugh.
So the man walks into the stable, comes out, and the horse is laughing.
He takes the cash and leaves.
Two days later he comes back and theres another jar, this time he must make the horse stop laughing.
So the man walks into the stable, comes back 10 seconds later and the horse is crying.
The bartender gives him the cash and asks how he made the horse laugh.
The guy says, "Well, I told the horse my dick is bigger than his."
"Ha", said the bartender. "So, how'd you make the horse cry?"
"I proved it".