A man walks into a bar and sees a sign that says "Make my mule laugh and win $1000."
The man goes out back to the mule and whispers in his ear. The laughs mule so hard tears
come to it's eyes. The bar tender pays up.
The next time the man walks into the bar there is a sign that says, "Make my mule cry and win $1000."
The man goes out back with the mule. When he comes back into bar the mule is crying hysterically.
The bartender says, "That's $2000 you won, mind telling me what you did to my mule?"
The man says, "The first time I whispered in his ear that mine was bigger than his.
The second time I showed him."