I had dinner last night with some friends, including a native speaker of Language D (remember, Language D?) who was kind and encouraging about my attempts to learn the language. (I can now count fairly well up to the hundreds, and say a few basic phrases. But even counting in Language D is complex!)
So, we chatted about where we'd been and what we were up to over break; one person went overseas; she's a specialist who works a lot with one language, but also revealed that she's fluent enough in another language to travel easily in that country as well. And the native speaker of Language D is also fluent in English and does scholarly work in a third language (both modern and medieval dialects). The fourth has us all beat to heck in languages, foreign and otherwise.
We fantasized about them all coming to see me when I teach abroad. :)