There are many ways that casinos use the strategy to break your principles even if you win and rush to log out. I ever intended to stop if I won $100 and withdraw the profit soon. But, I don't know what happened to all my profit (won $100) and lose. I didn't even stop after reached the winning, there are something like a magical whisper to keep me playing. that very insane, because I can't hear anything after my money's gone  . it is very difficult to maintain principles if you gambler because the habit bring you to bet until the button can't be pressed.