In our company's Yellow Pages, it's possible to list not only your areas of experience or your hobbies, but also what languages you speak.
The list of possible languages to choose from is pretty interesting; I wonder where they got the list from! It even includes Esperanto, Lojban, and Interlingua, for example. At first I thought it might be all languages that have an ISO 639 code, but there are also more minor conlangs such as Talossan and Ceqli, which I'm fairly sure don't have such a code. So I wonder how the person who made the list had heard of them.
At any rate, a coworker told me that there were two employees who listed "Klingon" as one of the languages they speak! I sent them an email asking them whether this was true and whether they were planning on going to the German qepHom in November.
One of them has already replied—and he said that it had just been a test to see whether anyone would notice. Hah! He has no honour, this one! Pretending to speak Klingon when he really can't!
Edit: and the other one doesn't speak it, either! Hab SoSchaj Quch!