Risk

"Risk" is a science fiction short story by Isaac Asimov, first published in the May 1955 issue of Astounding Science Fiction, and reprinted in the collections The Rest of the Robots (1964) and The Complete Robot (1982).

The story is a sequel to "Little Lost Robot". It is set in the same location, but involves a different positronic robot – one of the few in Asimov's stories to have neither a serial number nor nickname.