Just read this article about an American who woke up from a coma speaking only Swedish. It's funny how the story takes the claim at face value. Surely whoever is translating for him could tell what kind of Swedish he is speaking, or trying to speak: native or non-native, from what region, etc. Could it be an act, as the man is apparently broke and claims to be unable to access any of his multiple foreign bank accounts? Is there a way to prove that he *doesn't* know English? Is it really possible to suffer a brain injury that takes away a native language and leaves only an acquired one? If so, can the native language be recovered, or does it have to be relearned? If you had to pick one of your learned languages to wake up with, what would it be?