No Room for Human Error is a comic story written by John Lustig and drawn by William Van Horn. It features Scrooge McDuck, Donald Duck, Huey, Dewey and Louie Duck, the Beagle Boys, and, in first (and so far, only) appearances, Old Iron Beak and Perfecto 4000.
Inspired by a joking suggestion of Donald's, Scrooge McDuck purchases a custom-made "perfect employee" in the form of the robot Perfecto 4000. Trouble is, not only does Perfecto know it can do any employee's job better than them and have no qualms about firing them accordingly… but he thinks the same of Scrooge himself!
Behind the scenes
This story was only ever published in English in 1991 in Uncle Scrooge #252.