Interesting points of view here. I have a friend who similarly thinks changing babies dirty nappies in public is disgusting. However, that same friend has two cats who deposit their waste in other people's gardens!! Before anyone says 'that's what cats do - it can't be helped' I'd like to point out that cats can be trained from a very young age to go to the toilet ONLY in a litter tray. Slightly different I know but I'd be interested to know how many people, who are offended by a dirty nappy, have cats or dogs who poo in public places or other people's property? Yes she could have used a nappy sack I agree but then again she could have been one of the many mums struggling to get her shopping done with baby in tow - sleepness night, teething etc etc. and simply forgot to pack them. Most disposable nappies are designed to fold up after use so that nothing leaks anyway.