The [Machine War][1] describes how it was in the early days. The conflict started when a robot killed its human masters because they were planning to destroy it and replace by a newer model. That started a Machine Civil Rights Movements, but humanity had become lazy and arrogant due to the new lifestyle yielded by the creation of AI. Most humans refused to acknowledge the robots and the few human sympathizers who did were silenced. It's a great read/watch (if you see the anime), but I better stop here so I don't spoil anything.
After reading this, that has become my single concern about the future with AI: will humanity be able to treat and respect the machines as equals?
PS: I was reading about it just this past weekend. Such a coincidence. This thread was from where I got most of it: https://www.reddit.com/r/movies/comments/4h9ghg/in_the_matri...