Keno is a variation on bingo. It is the worst possible betting opportunity in Vegas, offering perhaps a 75% return for your money. Mind you, that compares favourable with the British Lotto, which only returns 50% of the money staked.
A casino boss arrived in the morning and was told that a punter had won the big Keno prize of perhaps $50,000 the previous evening. He promptly sacked the entire grave yard shift; that is the people working from midnight to 8am.
He correctly reckoned it was much more likely that the casino employees had cheated than that this headline prize had been won honestly. Why bother to take the chance?
