Here's one I heard at a 3 card poker table at Trump Marina tonight.

Seems like a couple of months ago there was an incident at Caesars where somebody had "inserted" a concealed Queen of Clubs into his dealt hand at 3 card poker. When the dealer showed her three up-cards (which included a Queen of Clubs) the player grabbed his stack of chips from the table and ran off.

Supposed to be a true story.