These guys at my school are so stupid! They are asked not to do something, but keep doing it until my whole class is punished! And they seem so surprised and disappointed when we are punished, like they didn't expected it!
It is a waste of money, but is that a bad thing? If you can afford to waste money you probably don't need it. And the shop will take the money and use it to employ people and expand. So, it is a waste of money, but that's good!