Microsoft made an AI bot on Twitter that had the personality of a 19yr old American girl. It only took 24hrs for the internet, filled with assholes and trolls, to turn this innocent bot into a neo-nazi. Microsoft seemed surprised by this but I don't know why. Probably naaive researchers that have never been on the internet before.
http://www.buzzfeed.com/alexkantrowitz/microsoft-blames-chatbots-racist-outburst-on-coordinated-eff
http://www.buzzfeed.com/alexkantrowitz/microsoft-blames-chatbots-racist-outburst-on-coordinated-eff