If someone follows rules and be smart enough and only desire a certain amount not too big the it is posible to do that. When your in a casino you can really win but the question is almost every player wont quit after winning thinking they would win again. But will not until you will lose every thing that you won and even all of your money in the pocket will lose to casino
That is the problem with us when we are winning. We think we are unbeatable and all our bet will be correct. So instead of stopping we tend to bet more only to find out at the end that we have emptied our bankroll. Gambling is profitable in the long run if we know how to quit and continue the games the next day. If we failed to know this, gambling will never be profitable.
This happens when success gets into our head and we think that we will keep winning always which most likely is not happening and may be at the end you may go empty handed due to the loss suffered in gambling . So always when you win just take the money and go away .