One of my neighbours, a million years ago, was obviously addict to the slot machines. He would spend hours spinning in a nearby bar (these machines are allowed in bars in my country of origin) and my take is that he would spend a fortune on it. Once, I passed by and I overheard him saying "I am going to teach this machine who is in charge". It sounded like he was attributing some short of conscience and life to the machine and though he could "beat it". I have observed that many people that gamble are into that type of thinking, that is, it is me against this code and this machine and I can actually break the code and win.
I personally do not play slots, but do you think that is why people like slot machines? Short of breaking their code?
I had heard the theory that there were people capable of breaking the code, mostly from Chinese nationals. I stopped believing in it since a friend who works in a casino told me that they have a lot of Chinese gamblers who end up self-excluding after having too much. You put "Wang" or "Chen" in the computer system and a very long list of people who have self-excluded themselves from the casinos comes up.
Things like this are likely to happen, thinking that you can break the code and enjoy keep winning from the house. Probably casino is just alluring you and give you some time to cash out of their house, but in returned a long losing streak will keep on happening to you. You'll just realize that you already lose too much from this activity.
Gambling operators know how to take advantage of gamblers' greediness, they'll let you feel you are in control, but in the end, they are the ones who are controlling you.