Casino games are full of judgment calls with what plays you should make. Should a blackjack player hit hard 16? Yes, if the dealer’s face up card is 7 or higher, but not if it’s 6 or lower. Should a Three Card Poker player match the ante with a play bet? Yes, if the hand is Queen-6-4 or better, but not with lesser cards. But there are absolutes, too. And many of those absolutes are absolutely not’s.

Here are a few things you should NEVER do in a casino….