He also could be creating a stink holding the nuts.
Agreed. If I'm the floor, I'd be sorely tempted to say, "Fine, you fold. But I'm going to take a look at these cards after the hand is over. If the decision was that close that you had a right to complain about it being $1000 vs. $1100, you'll continue playing. If not, you're sitting out 2 rounds." If he complains saying he wants to play, I'd say, "I guess I have you by the NUTS."