Someday a human being, named perhaps Fred White, may shoot a robot named Pete Something-or-Other, and to his surprise see it weep and bleed. And the dying robot may shoot back and, to its surprise, see a wisp of gray smoke arise from the electric pump that it supposed was Mr. White’s beating heart. It would be rather a great moment of truth for both of them.
Philip K. Dick, “The Android and the Human” (1972)