I ran away, as my universal translator was giving me strange responses. It was terrifying. I later learned that he only wanted to invite me to a fondue party. He turned out to be a really nice guy.

"The Babel Fish is small, yellow, leech-like, and simultaneously translates from one spoken language to another. When inserted into the ear, its nutrition processes convert sound waves into brain waves, neatly crossing the language divide between any species you should happen to meet whilst travelling in space. Meanwhile, the poor Babel fish, by effectively removing all barriers to communication between different races and cultures, has caused more and bloodier wars than anything else in the history of creation."

You can see the original sketch for the alien in the extras gallery. The sketch was at least 5 years old.