Lost Treasures of the AD&D 2nd Edition Monstrous Compendium
Steve: More robots need full beards and mustaches.
Zack: "Gnomes again!?" *pushes plate away in disgust* "Hang on there, Timmy. This ain't your grandpa's gnome."
Steve: My grandpa's gnome got shot off in the war.
Zack: He's been so lonely ever since grandma died and he likes the way he can see it standing in the dark corner staring at him with those dead, black doll eyes.
Steve: Then one day it starts reading books really fast and it totally blames you for all the violence and evil in the world because it saw "murder" in a dictionary.
Zack: The auto-gnome is what happens when the monster planning meeting goes wrong. One guy wants another giant worm, another guy wants a sexy spirit that lures unwary travelers to their doom, and then the bee man guy filibusters and they're left compromising with the gnome robot.
Steve: It takes the same sort of thing happening in the DM's brain to end up with an auto-gnome encounter.
Zack: "You think you see a gnome, but you also hear a sound like a pulley. Yet, there are no pulleys in the room...or are there?!?!?!"
Steve: Wheels within wheels.
Zack: Attached to the pulleys.