The first case of a robot attack on a person was fixed in a Chinese town Shenzhen. The accident happened at the fair where hundreds of companies introduced different high - technology goods and services. The owners of one of the stand represented a little robot which has much in common in appearance with the famous character from "Star Wars" - R2 - D2. The main purpose of a droid was teaching kids and entertaining visitors. But by unknown reason the robot started to crash the stand and when one of the employee tried to stop him, the robot injured his leg and pressed him. The robot was rather heavy and it was enough to cause serious damage. The ambulance was called for the injured person. Fortunately the injures were not serious.
Hopefully it is not the beginning of a war between robots and people.
You can read more here First Robot Attack