They don't know when their luck will come so that will makes them in trouble if they decide to continue playing gambling with more money. Besides that, they will gets more emotionally when they still playing gambling and not decides to stop their gambling activity because their tension is also increase and will difficult to control. Even if they have good skills on the particular game, that doesn't means they can win easily because they must remember that the situation in the game can change anytime.
They must take care their tension not to become high because that will related many things such as losing more money, losing control, and else. So when they feels that their tension start increase, they can take a deep breath and thinks to stop their gambling activity and leave the casino. They can back to casino anytime after they reduce their tension.