Here's something I picked up from a recent Reuters article:
Two people produce fake 15 yuan notes, although there is no such thing as a 15 yuan bill in China.
They decide to go to a remote mountain area to spend it and buy a candied melon slice for 1 yuan.
They burst into tears when they get two 7 yuan notes in change. (There is also no such thing as a 7 yuan note in China.)
(Photo credit: Google Images)