A Chinese company just unveiled a robot bodyguard that can kick a dent into a car, and its own safety advice is to stay 7 to 10 feet away from it. Which is kind of a problem, because a real bodyguard is useless from 10 feet. The whole job happens close enough to grab you. The reason for the distance is the same thing that makes the launch video so fun to watch. The robot is built on Unitree's H2, which weighs about 154 pounds, and every joint in its legs can put out 360 newton-meters of…