Is this right???
It is somehow a misplay of your hand to show it?! In SS, Doyle Brunson mentions showing his hand to his opponent to try to evoke a reaction (get a tell) from his opponent before making a call on the river. I agree that here it's going to be a disadvantage to show my hand, but an automatic loss of the pot??

I'm not disagreeing that I was too quick to show my hand. But surely this is not all that uncommon. I think I've seen the same miscommunication between two people before.

I just want a DEFINITIVE answer on how this would be handled in Vegas (so that I can handle it the same way in my home games). Can somebody quote a resource, or affirm what they witnessed in a casino?