Sigh! I saw a granny let her little grandson (probably) pee on a bus in Beiijing a few days ago. I'm sure many people were disgustd but nobody said anything. Some people believe if you don't let a small child pee or poo at once when they said they want to, it will hurt their health. If you say anything, they will retort:"If anything goes wrong with my precious little one, will you be responsible for that?"