I watched a youtube video where someone tried to give away a gold coin at a beach somewhere in the US. No one would take it. He tried to pay for a $2 meal at TacoBell with it and the teller wouldn't accept it even though it had a legal tender value printed on it.
That was Mark Dice. He tried to sell a 1 oz Gold coin for 20$.http://www.youtube.com/watch?v=Xzt3EcIo5tk