When I was 15 I went on a cycling trip to France. I showed my Dad the route. It went through a place called Bolbec. He went a bit quiet and later he caught me on my own. "While you are in Bolbec, if you should meet someone who looks like you, ignore them"
I said, "What are you on about?"
He said, "Well I went through Bolbec after D Day and the locals made us (cough) very welcome."
I was shocked!