Three Laws of Robotics authorities such as doctors, teachers and so forth which equals the Second Law of Robotics. Finally humans are typically expected to avoid harming themselves which is the Third Law for a robot. The plot of "Evidence" revolves around the question of telling a human being apart from a robot constructed to appear human – Calvin reasons that if such an individual obeys the Three Laws he may be a robot or simply "a very good man". Another character then asks Calvin if robots are very different from human beings after all. She replies, "Worlds different. Robots are essentially decent." Asimov
Sci-Fi on the Rock place at the Holiday Inn in St. John's from April 24–26, 2015. Guests include Lynda Boyd from Supernatural, Sanctuary and Republic of Doyle, Frazer Hines who is better known as the Second Doctor's companion Jamie McCrimmon from Doctor Who, Peter Williams who played Apophis on , cosplayers Adam Smith and Kevin St. Pierre, with Fat Apollo returning to Emcee certain events. The event was again a great success. The crowd was so large that it was clear that Sci-Fi on the Rock had again outgrown a venue. This would be the last year that Sci-Fi on the Rock took place