A man was sitting at the bar when he walked over to the bartender...
He asked the bartender, "Hey, how about one on the house for your ol' pal?"
The bartender replied, "No can do, sir. You have to pay money to drink here."
The man, crestfallen, tries a different strategy. "How about a bet?"
The bartender's crippling gambling addiction took over, and with piqued curiosity said, "What do you have in mind?"
"I bet you 500 dollars that I can piss into a glass on this bar and not get a drop anyw…