Gambling is tricky; it's as if it plays with our brains, which is what most people believe, on which they always link it to the reason why some gamblers react the way they do on several occasions.
Plays with our emotions actually and helps us make wrong choices if we didn't checkmate our involvement from the start of a gambling session. When the gambler suffers terrible loses and is frustrated, he's seldomly in control of his actions and at such moments his emotional control and intelligence is near zero. This validates any unethical and irrational behavior that they exhibit.
If the gambler wins a big amount of money, if he's not the type that controls himself, his chance of losing all that money is very high, as the joy that comes with that winning could lead to an increase in his greed level and his confidence that he's on the lucky side will increase, which can only result in him continuing to try out his luck until there is nothing left to try luck with again.
I am always supporting the notion that tangible gambling wins should be removed immediately from the casino and shouldn't be part of the funds used during a valid gambling session, because the probability of it sinking back into the casino is very high. We should try our best stick to our gambling budget and credit our accounts with our grabbling wins for it to be useful to us.