This is the first time I am seeing a lady playing gamble in the public domain. Though I have been hearing but not seen. Well she should take heart, the matter how she cried the money will not come back again. What do you say about the Lady? Did she do well in the public? As I said, gambling is not your mate, take precautions.
Obviously, the girl is not used to playing and he has no control she may have a good run, and because of her greediness he best everything she has and lose everything that is the most likely scenario I can think of.
I have a lot of friends who almost lose their minds because they have a wrong conception about gambling, they are not there to enjoy and have fun, their mindset is how to beat the house which is impossible, and losing everything is the result that is why she is so disappointed with what happened to her, if she got good support from her love ones she will overcome this.
Maybe the girl is one of the few gamblers who just came, in the sense that they are still new to gambling so maybe they don't know what actions to take to minimize losses which in the end experienced a deep slump with a very large amount of loss, and also besides that I would not fully say that those who do things like this are always them as novices, Because in fact even though they have been gambling for a long time does not mean they can always control themselves when gambling, and of course as you say greed is very likely to occur and will not see who the person is, even though at first winning but it's not over yet, after greed controls you then the final story will be different, that is, what initially won will lose and even run out of everything they have.
That's just a very silly and funny action that your friend has done, how can you beat the house that is clearly the gambling system set by the house itself, it doesn't make sense with that kind of mindset. It will only bring you to a deeper downturn, especially the number of large losses, instead of wanting to beat the house, you yourself are drained by the casino itself. So be wiser and more realistic in looking at gambling if you want to survive.