Many gamblers believe that getting further into a loss/win streak becomes less unlikely as the streak's number gets bigger. Gambler's fallacy says that each bet is calcuated individually and only it's chances of win/loss are the ones that count.
You can click on the image for a wikipedia link. What do you think?
You're touching the concepts of luck and streak here and these are not mathematical.
People are not only ones and zeroes, if it was like that nobody would step out of line and people wouldn't believe in prophecies and the supernatural.
Usually people go further into the loss because they feel it's more unlikely for a 50% loss to occur many times in a row, which is true.