An unassuming man takes a seat at a stool in a bar...

...The bartender walks up to him and asks what he'd like to drink. The man says he'd like a $25 martini. Before the bartender leaves the man stops him

"I bet you $50 that I remove my left eye and hold it in my hand."

The bartender agrees, and the man takes out his glass left eye and holds it in his hand.

"Let's do another," says the man. "I bet you $250 that I can touch my right eye to my teeth."

Once again, the bartender agrees, and so the man takes out his dentures and touches them to his right eye. The bartender is in disbelief.

"Last one," the man says. He walks across the bar, takes an empty glass from one of the tables, and puts it on the floor. He then walks back to the bartender. "I bet you $10,000 that I can pee into that glass from here and make it without spilling a drop." Well of course the bartender agrees. This man must surely be stupid for making a bet like that, he thinks.

The man unbuttons his trousers, grasps his penis in his hands and begins to pee. Immediately, he starts to flail around wildly, still going strong. Pee flies everywhere! It hits the bartender full force.

"Well, give me my thousand bucks," says the bartender, now giddy from happiness even though he was dripping in piss. He won $10,000 after all. So the man does without a bit of discontent. The bartender asks him why he isn't unhappy.

"I'm a professional better," answers the man. "You see that Chinese man over there? I bet him $1,000,000 that I'd pee on you and you'd be happy."