happybitcoinph, you have described exactly why I was able to stop gambling. Too many times, there was plenty of luck and nice gains, but then doesn't seem like the time to stop. I'm happy those experiences are over now.
Sure some gamblers tend to get carried away with the winnings that they get and choose to over gamble, some of them even set a limit to stop at a point before they start to gamble, but once the win a few games and unexpected money role in, they grees become uncontrollable at at that point, they will start to gamble excessively until they lose everything in the end.
This is the early stage of addiction, and uncontrollable actions is one of the sign of gambling and other addictions. Instead of to take your winnings and call it a day walk away from the table with your winnings is the most honorable way to gamble when you get lucky to hit the winnings.