Scott's nanny just went out to buy new shoes at the evening market on Hongmei Lu. About 30 minutes later she came back, without shoes but obviously very unhappy about something. After she calmed down a bit she told us what had just happened. She found a nice pair of shoes and wanted to pay for it with a RMB 100 bill. The sales person took the bill but gave it back to her a few seconds later, telling her that it was fake. She looked at the bill and noticed it was a clean, unfolded bill. However,...