THE SECRETS OF THE BOOK OF DEAD SLOT CAN BE REVEALED AT GUTS CASINOSecret
So as to the device is faulty is the casino's problem, not his.
Dunno if I buy into the "innocent employee" routine though. The true answer is just to replace the machines. If not, then there was denial "con" or "conspiracy". Every casino tries to invent something new and creative to attract more and more users. It has all the health benefits of a recreational drug, but by least in most of the US, it's not a scam. The dealers know what to look for after that you will be watched. Disclaimer: I have worked in the gambling activity, and I will probably do it in the future.