Yes you do send the food back and nicely complain...as for shutting down the restaurant, what an arrogant a****le!!!
Bet ya he puts his pants on just like the rest of us. I just love it when the rich tell others the way it's gonna be. What a loss to the neighborhood in London.

Have a heart that never hardens, a temper that never tires, a touch that never hurts. - Charles Dickens