Some people say you have dandruff. How can you go back?

Some people say that you have dandruff, you can say, hehe, maybe the shampoo is not good, just laugh it off. You can't stop talking just because your mouth is on someone else's body, so laughing at small things is often the best rebuttal. There are too many people smiling at you in this world. There are too few people who really tolerate you. Many people hate you, too few people like you, too many people watch your jokes and too few people really help you.