Recently on this forum there has been a thread on roulette and mentioned was how dangerous it was to bet against a run as it may last forever hypothetically. This is the risk punters take when they bet and increase their bet until they find a winner, to win a set profit. When it gets to the stage you have backed 10, 20, or 30 losers in a row your to win your initial set profit could be 1000000 to 1 on. Of course the punter would probably run out of funds before it gets to this stage, hence the system would collapse. The only way to beat the house is to pick your one spin and bet big, as applies to horseracing find your 'special' and have a go.

Cheers ED