You are the floor. Make a ruling

[Robbie Robb]

I agree with Kurn about the current hand.

With regards to the first hand, if the red card didn't come into play then it's pretty much a non-issue isn't it? The addition of that card (assuming it is a 53rd card) doesn't really alter the odds any as it's not a valid card. Had it come up in play then the had should be declared dead, otherwise it's as if it's not even there.

In the interests of customer service, I'd probably throw the guy some comp but that's about it.