Reminds me of an old episode of Twilight Zone (I think) where the aliens said they came to serve man. At the end, as one of the more skeptical characters in the story is being wheeled up the gang plank of the flying saucer against his will, it’s revealed the book given to the humans by the aliens at the beginning of the story turns out to be a cook book.
A friend of mine just gave me an iPad mini case that looks EXACTLY like the To Serve Man cookbook. We were at San Diego Comic Con at a restaurant taken over by SyFy channel, renamed and redecorated (every year) like one of its series.