The biggest casino’s theft is the credits given to gamblers in gaming token, chips or slots coins but not as cash. Credits slip are just a piece of paper signed both by the casino manager and the gambler. Credit value is taken back when a gambler is winning, usually, he is paid like 50% cash and 50% credit papers. This is a way to increase the casino odds and reduce the gamblers chances of winnings. But this credit system not allowed in all countries.