Since science fiction movies began to show fantasies about artificial intelligence in general, many have been critical of it. What if an artificial "brain" develops too fast or has a corrupted file that acts like a sleeper - with delay! What if your smart robot turns to murder? What if a complete networked structure turns against you? There have been many ideas about bad artificial intelligences. Please remember the persons in the movies, affected by these artificial intelligences in their specific situations. Which of these AIs seems to be the meanest nightmare? Scare us here.