A teacher was trying to make use of her psychology courses. She started her class by saying, "Everyone who thinks you're stupid, stand up!" Little Johnny then stood up. The teacher said, "Do you think you're stupid, Johnny?" "No, ma'am, but I hate to see you standing there all by yourself!" 一个老师在对学生们讲心理学，“谁认为自己蠢就站起来？”她一开始就说。 小约翰尼站了起来。 “你认为你很蠢吗，小约翰尼？”老师问。 “不是的，老师，我只是不喜欢看你一个人站着。”