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Greed is our dearest enemy once we are in gambling. Cause it is proven and tested by other gamblers that once we have a big balance in our bankroll then sometimes greed will take over us and also when we let it take over us then there's a chance that we will loss our money cause we will put a big bet aiming that we will win big amounts without knowing that we will slowly loss our balance and sometime our balance will become Zero if we can't fight our greed. So it is very important to fight our greed in order to prevent more losses.
It is true that greed is the thing that most often misleads gamblers - especially when they are experiencing a big win and see a lot of money in their bankroll, usually gamblers will be tempted to play again and again until their desires are fulfilled. For some gamblers, maybe they can control their greed, but for many gamblers they cannot control this which leads to their losses and even serious bankruptcy.
And because of this, it is important for gamblers to be able to set limits on their gambling and consistently adhere to them. Even though there are several opportunities to play more, gamblers must be aware that this is greed and do their best to fight the urge to play.