do retail business, the daily intake of pocket money is very much, it will inevitably make some shops feel not enough, so, some shopkeepers will think of a method, which is to take the candy top pocket money. I found in daily visits, and some retail customers because there is no change to find, they learned to take a few cents to take the candy as a substitute for customers.
even some retail shop for a long time, but also the practice as an experience to impart to others. In this case, in the suburbs of small supermarkets and rural shops appear more. Although most retail customers are not interested, but I do not know, this seemingly humble approach, in fact, is against the interests of consumers.