Zorro shares a report from The Guardian: Boston Dynamics' well-mannered four-legged machine SpotMini has already proved that it can easily open a door and walk through unchallenged, but now the former Google turned SoftBank robotics firm is teaching its robo-canines to fight back. A newly released video shows SpotMini approaching the door as before, but this time it's joined by a pesky human with an ice hockey stick. Unperturbed by his distractions, SpotMini continues to grab the handle and turn it even after its creepy fifth arm with a claw on the front is pushed away. If that assault wasn't enough, the human's robot bullying continues, shutting the door on Spot, which counterbalances and fights back against the pressure. In a last-ditch effort to stop the robot dog breaching the threshold, the human grabs at a leash attached to the back of the SpotMini and yanks. Boston Dynamics describes the video as "a test of SpotMini's ability to adjust to disturbances as it opens and walks through a door" because "the ability to tolerate and respond to disturbances like these improves successful operation of the robot." The firm helpfully notes that, despite a back piece flying off, "this testing does not irritate or harm the robot." But teaching robots to fight back against humans may might end up harming us.