It’s time to put this baby to rest
The casino or sportsbook make money by charging commissions or keeping a portion of the winnings. They make money regardless of the outcome of the competition. The sportsbook changes the odds over time to ensure that they maintain an equal ammount of money on both sides of the bet – in so doing they lock in their profit
http://www.wisegeek.com/how-do-sports-odds-work.htm
There you go, live and learn
At least Gooner knew when he was beat and backed out