Gamblers should beware of greed. Greed is one of the problems of every gambler, it is the reason most gamblers fail. A person who walks away after a loss is not a coward. Staying back to gamble does not guarantee the money lost will be recovered. A gambler who chooses to kill the urge to stay back and gamble more has very little to lose.
But with that confidence, they're showing to themselves, they're also careful about what they're doing because this is gambling. It's a complete of games that are full of surprises.
You'll never know if your emotion is still right but then, with some losses you'll get triggered and that's what you have to watch out for when you gamble because you're right about greed. It's a major problem of all gamblers.