I was playing 1/3 at Caesar's in Vegas last Saturday. I don't particularly like their room, but we had eaten at Rao's and the room was close, so I went in. I had played for about an hour and was up about $10. The table was average - not great, not terrible, and I was mostly getting mediocre cards. I was on the button, and they allow a button straddle, so I straddled.2 callers to me. I picked up AJo and popped it to $25.Folded to the guy on my immediate right who called.Flop came Q 8 4, suits unimportant.Checked to me. I bet $40.The guy said "I was best before the flop, but you caught me" and put his cards down across the bet line and pulled his hand back.I chucked my cards into the muck at which point he immediately snatched back his cards before the dealer could take them and declared that since he never said he folded and his cards never touched the muck, he still had a live hand.I called the floor.Surprisingly, the floor ruled in his favor saying that he didn't like the angle, but that the guy's hand wasn't technically dead since the cards hadn't touched the muck.That was a first for me. Forward motion of the cards and dropping them across the bet line has meant a fold in every other casino I've ever played in. I argued the point for a minute and then decided it wasn't worth the effort, racked up, and played at Bellagio instead. It ended up being a fantastic session, so the kid ended up doing me a favor in the end, but it left a sour taste in my mouth for Caesars.I just figured it was worth mentioning. There are a lot of options for playing cards in Vegas. Make sure Caesar's isn't on your list.