Yes, never to be such a greedy when you are placing your pick, most of the time that's the reason why instead of making money you lose a lot becuase you don't know how to properly manage your finances, just the thinking that if luck permits you may quickly double your money and win a lot, things that linger inside you and give you that impression that you can keep making decent amount of winning by pushing yourself into gmbling and treat the place as a good venue for making money.
The entertainment they get when playing is what makes them stay unless someone has some unique trait to control his emotions, he can easily get away when he is winning but that's not the case because most people will still and play until they lose everything they have with them and sometimes they don't give up, they even use some money which is not to spend for gambling. This is the problem for most gamblers and they only realize that was not a good idea when they lose those funds as well on the same day.