Is it possible that German Ethnicity is grouped in with Scandinavian? My results were 56% Scandinavian (with no known ancestors from those countries) 36% British Isles (totally fits with my ancestry research) and 8% unknown. I have a lot of ancestors that appear to come from Germany so I'm not sure where they fit in my DNA results. Except to assume they are lumped into Scandinavian.
I'm open to the idea that someone I might assume is my ancestor didn't actually contribute to the DNA (maybe Sven the nice farmer next door did). That said...I'd like to know more about German Ethnicity DNA Results.