There was interesting situation over at Greg Mueller's table a few minutes ago. The under the gun player opened for 900 and Mueller called from the big blind. Both players checked the flop. The turn came and Mueller check-called 900. The river came , Mueller checked and his opponent bet 1,800.
At that point Mueller said, " I had you on ace-queen and I had you beat until the river club," and exposed his hand - without a club. His opponent told him he didn't have a club and showed him .
The problem is Mueller hadn't mucked his hand, it was still live. He asked the dealer what his options were and a floor was called. The floor ruled that since he hadn't folded his hand was still live and could fold, call or raise.
Mueller took the high road and folded his hand surrendering the pot to his opponent.