What are you gonna do ? Revive the guy in a $ 5 , 000 suit ? <| sep |> There have been studies showing that humans seem to be the only animal that thinks they can beat statistics . This is why the dog always picks the one hand . If the chance of getting food is 5050 , you are better off always picking the same hand over and over again because trying to game the system usually leads to you losing worse than 50 % of the time . This is why it took the dog longer to figure out that the human rigged the game and was always going to use the left hand . It ' s why in Vegas , a human will believe that a machine that has lost a lot of times in a row is more likely to win than the machine next to it that just won last time , even though the reality is that both machines have exactly the same chance of winning . Our hubris causes us to fail , and casinos know exactly how to exploit that .