Just once, I'd like to see someone who has a mortal lock on the absolute nuts offer to run it twice, then have the other person accept, only to see that it's pointless. That would be good theater.
It would indeed. I'll remember that one. Some day that situation has to come up.

plesner
Or how about this?
* Player A has AsKs against Player B's QhQd
* Flop is the all to predictable QsJsTs
* Player A check/calls Player B's bet
* Turn is Qc giving Player B Quads
* Player A checks, Player B bets, Player A now check/raises, Player B shoves and of course Player A insta-calls with the immortal Nuts
* Player A has Quads drawing dead and, before showing his hand, asks Player B if he wants to run it twice as a joke since there is no way for Player B to win the hand
* Player B with nothing to fear agrees
* Hands are shown and Player B gets the grim news. Player A even needles Player B a little and says "good luck."
* River #1 is 2c
* River #2 is another Js. Hand is invalidated due to a dupicate card in the deck and all bets are returned
Now THAT would be good theater!