Re: Had a mischeif disk...
You are correct. Normally I can pass as a native speaker of English, but speakers of the British version of English assume I am American while those using the American version assume I am British. This is due to a different preference in word choice versus pronunciation. And both are quite surprised to learn I am Dutch and still living in the Netherlands.
And drop me in Germany for a couple of days and my German is up to the same level again as well, although I won't reach the level of my father, who once had to pull his passport to prove he wasn't German. It happened when he was acting as an interpreter between the German police and a couple of Dutch tourists in a minor problem. After it was solved the German police officer asked my father how he happened to speak such good Dutch as a German, upon which my father showed him his Dutch passport and told him he was a teacher of the German language.
Biting the hand that feeds IT
