Drunk Poker

A man walked into a bar room one day. He walked up to the bartender and said, "Bartender, I'd like to buy the house a round of drinks". The bartender said, "No problem sir, but I'll need to see some money first". The guy pulls out a huge wad of bills and sets them on the bar. Well, the bartender can't believe what he's seeing. "Where did you get all that money?", asked the bartender. "I'm a professional gambler", replied the man. The bartender said, "There's no such thing! I mean, your odds are 50-50 at best, right?". "Well, I only bet on sure things" said the guy.