This morning a coworker told me a story from his visit to one of our Dutch offices last week. The hotel he was at had a little nine-hole par-three golf course on it, with a bar next to it. He wandered into the bar one evening and started chatting with another English-speaking patron. The other fellow bought him a round, then it was my coworker's turn to buy one. He reached into his pocket and pulled out a bunch of Euro coins (the beer was very reasonably priced at 2.5 Euros per glass). He was scanning his handful of coins when the other guy pointed to a particular coin and said "Get rid of that one first". This puzzled my coworker, so he asked why that particular coin had been singled out.

"That's a French Euro," the other guy said. "The other ones are Dutch Euros. Get rid of the French Euro first."