Science Fiction. Hardback, book club edition. Small stain on edge of pages, slight wear to dust jacket.
"It all began when the melted cheese from a misplaced sandwich leaked through a small hole in a hatch covering the circuitry of the O-daiko A.I. master computer.
After getting cheesed, the O-daiko, which ran the automated factory that produced A.I.'s for every thing from toasters and lawn mowers to weapons control and interstellar broadcasting systems, began thinking about things it had never considered before. Things like the question of intelligent life in the universe...
And so it decided to search for such intelligent life, which involved, for starters, modifying all the A.I.'s it created.
It wasn't long before sewage was backing up on all the colonized worlds, lawn mowers were cutting the words 'Please contact me' in the middle of prize-winning lawns..."