A man walks into a bar and says to the barman: “You see that glass at the other end of the bar? I bet you $100 that I can pee in it from over here.”
The barman agrees to the bet, so the man begins to urinate all over the bar, its patrons and even the barman himself – basically everywhere except in the glass.
“Ha!” says the barman. “You owe me $100!”
“Wait here,” the man replies, and he walks over to the pool table. Someone hands him some money and they have a laugh together.
The man walks back over to the barman and hands him $100.
“Thanks,” the barman says, “but what were you laughing about with that dude over there?”
The man replies: “Oh, nothing. I just bet him $1000 that I could pee all over your bar, including on you, and you’d still be smiling at the end of it.”