As for casino Hold’em games, Eric, the rule is that “cards speak.” Your poker hand is what it is, regardless of how you call or miscall it. Any verbal declaration as to the content of a player’s hand is not binding. If she claimed that the hand is worthless, but in fact she had a straight, her cards speak, and her hand is viewed for its genuine value, that of a straight. Her about-face was legit as long as her cards didn’t touch the muck, the pile of discarded cards in front of the dealer, or another player’s cards.