Speedy looked up and saw them. He stopped suddenly and remained standing for a moment. Then he turned and ran away, kicking up dust behind him. Over their radios, Donovan and Powell heard him singing a song.
Donovan said weakly, 'Greg, he's crazy.'
He's not crazy,' Powell said. 'A robot's only a robot.
There's something wrong with him that's confusing his brain patterns. Once we find out what it is, then we can fix it.'