Chuck Norris has the greatest Poker-Face of all time. He won the 1983 World Series of Poker, despite holding only a Joker, a Get out of Jail Free Monopoloy card, a 2 of clubs, 7 of spades and a green #4 card from the game UNO.
I've played that game with my 5 year old. He won 5 bucks, my six pack of Bud and got to set fire to my wife's wedding dress from the attic in our fire pit.