From a couple of years ago but I don't recall reading about this before...
link:s://:.thesun.co.uk/news/1996638/casino-hustlers-walk-off-with-14k-from-just-two-bets-after-finding-way-Of-always-winning-at-roulette/
For entertainment only :o
How big is this large data source? How much data can I get because I suspect that this large content has deleted the database?