I had a similar idea. Actually it was the same idea as the boy, but it was just a joke idea for me. Anyways, I was joking around with my friend Oliver telling him about my great idea. "They should really make a store that sells food and other things and it can all be in aisles!" I said (or something like that). And he came back with this witty financial/super market comment. It was sooo good it made it into my comics. Thanks Oliver!