You can buy “nothing” at Sainsbury’s

I just got a strangest idea ever while waiting in the store: "can I buy nothing at the self-checkut?" Apparently it is possible. and nothing has always a weight of 0.01 kg. I wonder why the staff looked at me in a particular way :).

It is always funny to see what the designers have not envisioned or even tried to use. I wonder how many flaws my products have … hmmmm …