Sometimes they need to read of their so-called confidence things if it has to do with gamble, it can make a gambler to lose huge amount. Image when you become so lucky to cashout from jackpot that you didn't expect and you becomes so confidential (quietly continue betting) and keep on gambling, unfortunately you will lose the money you through jackpot. This is why one have to quite if he is lucky to win huge amount.
The jackpot is a fortune for someone and it needs to be realized by the person who gets it suddenly when he has made a bet in gambling so that the person can determine the time to stop even though at some point he will return to gamble in a different place. But some people still can't realize this so that when he gets a jackpot, he is even more enthusiastic to continue gambling non-stop so that what he has won will also run out in the end because he experiences continuous defeat.