This is what I have learnt and I think everyone who did not not learn this should learn also. The next time I visit a casino to gamble on any of their machines, I will be sure to ask the attendants there to show me a machine that they are certain is not malfunctioning. I know that you cannot know when you are about to win, but developing the habit of always asking about a machine that the attendants in the casino are certain is not malfunctioning will stop them from making that excuse if I happen to win any day on their machines.
I believe that no body was given birth to and he or she became wise from birth, we all are learning though not at the same speed, those who learn faster are those who open themselves up to learning from other peoples mistakes and experiences, the experience of this woman is one that I believe have thought many gamblers something new, like you shared.