Apologies to those who have seen this already; I hadn’t caught up with my reading, and only came across this yesterday. The Economist carried a story where a group of shoppers acted as a smart mob and aggregated their intentions in order to convert purchasing power into demonstrable landed value. And the shop they targeted welcomed them with open arms, to the extent that they shut the doors to other shoppers and gave them ad-hoc goodie bags.
You can read the story here. Or Google it.