Zhang Tiezhu went home drunk at night and met a tailless yellow man who asked for a seal. Huang Pizi said, "Do you think I look like a human or a god?" "Haha, you have legs like your grandma's!" Huang Pizi said, "Brother Zhang, stop making trouble and talk to me!" Zhang Tiezhu, "Pizi, I tell you, you must believe in science these days!"