Won't Miss #56 - slow payers

Easily 50% of the customers who are in line in front of me at shops seem to have no idea that some sort of money will be required after the cashier has rung up their goods. Some of them stand there in deep and solemn meditation and others engage in idle chit-chat until every item has passed the scanner and then, and only then, do they open their wallets or purses to begin the long and arduous