Taco Hell

Speaking of money, there is a story of a Taco Bell employee refused a $2 bill because he thought it wasn't real.

http://www.snopes.com/business/money/tacobell.asp


And here is a whole page of similar incidents. Apparently some of the serving public is not completely aware of their own government's currency.

http://www.snopes.com/business/info/tacobell.asp