What happens to your paper bags when it rains?!?

In Japan, it is very common to a people holding paper bags covered with thin clear plastic bags on rainy days. Stores will put a plastic cover without being told on paper bags like the one on right. (My bag today. Yes, it was rainy.)

I hear Japan can be said the service(in all kind of industries) is the best in the world. I agree. As a customer, passenger, guest at a hotel, etc., it is wonderful to live in Japan. (If not always thinking about the price of it! I say not always because even if you do think of the price, sometimes it does turn out to be reasonable in Japan.)

However, on the other side, it is a whole different story when you are the one to give the service...