There's an apocryphal story about a computer that was given two English phrases. The computer was asked to translate the phrases into Russian, and then translate the Russian results back into English.
The first of the phrases was "The spirit is willing, but the flesh is weak," which came out as "The vodka is good, but the meat is spoiled."
The other phrase didn't fare much better. The computer turned "Out of sight, out of mind" into "Invisible and insane."