Commedia 2X00 has Dottore's island-fortress-lab patrolled by a few different species of robot mook, but the most common seems to be the Nonny: an armless Shyguy wearing a Guy Fawkes mask, speaking entirely in the words "hey" and "nonny". Arlecchino remarks to one that they seem harmless, and it responds by grabbing him with tentacles out of the eye-holes on the mask.
Erfworld is set in a RPG Mechanics Verse that revolves around warfare, where most people and creatures (except a few special ones like casters and heirs) are literally created to fill this role.
In El Goonish Shive, the not-really-flaming fire summons fulfill this role. They are so harmless to Greg and Grace that they use them as training dummies to teach Grace a sleeper hold.