You will not bankrupt ANY casino (Roulette example):
1) In general , (mathematically) all casino will have their profit of 1/37 of all its cash flow If the Cash flow per day ~ 100K-1000K $ for the average casino, the profit would be 2.7-27K $ per day, not bad.
2) All casino have their maximum bet, and for example if you are unlucky having 8 losses in row ( black/red bet example)casino will not allow you to bet 9th time with increase (1 $ -first bet, if you use triple increase the 9th bet should be 6561$, you know what I mean). So casino wil have all your 8 bet money
3) Many casino are not fair, still ( magnets on land casino, online casino ) – so try to bankrupt ), if you are lucky - yes ))))