UNPREDICTABLE

I don't think there is anything quite as "Unpredictable" as gambling...THAT's why they call it gambling. It is "possible" that you will win, and even win big, but as any fool knows, the odds are in the house's favor. So the longer you play, the greater the chance you will eventually give all that you brought, and all that you won to the house. Perhaps, if you look at it like that, gambling actually is predictable - you're going to lose!!