Of course, this is all in the name of research. Scientists need to assess human-robot pain thresholds. At least this is what they’re saying. I think there may be something a little more sinister here. I wonder if the test subjects here were the jocks in high school and the scientists … well, they’re scientists. So they could cook up some story about safety testing robots by punching people in the arm to make sure they aren’t hitting too hard and bingo! Instant revenge. Why don’t you read about it for yourselves and see if you come to the same conclusion.