One day an old man walked into a tailor’s shop (服装店). He asked a shop girl to let him have a look at a new shirt on show, but the girl stood quietly behind the counter, taking no notice of him. The man spoke to the girl again, raising his voice a bit, but still received no answer. The man looked closely at the girl and nodded to himself, "I’m too old to see well. I can’t even tell a plastic model from a real girl!" When she heard this, the rude shop girl shouted at the old man, "What. Did you call me a plastic model" The old man was greatly surprised, "Oh, dear me," he said, "the model can speak! Then it must be a robot of a new type!\ The man was 70 years old．