A robot in a high-visibility vest carrying a loud hailer while patrolling a park in China’s northeastern Jilin province has caused much amusement online. “We have sprayed pesticides in the park. It is highly poisonous,” the robot was exclaiming through the loud hailer. The robot was also saying that when worms eat the pesticide it they instantly lie down and pretend to be dead, state media CCTV reported. An official from the park said the robotic warnings were necessary because it was a prime...