Getting It Upside-Down

Who's to say that this wasn't developed by a government bureaucrat?

The dumbing down of America continues apace. If they wanted the cans stackable, why not change the bottom to stack inside of the unchanged top? Maybe it's because someone already has. These appear to be those same cans, only upside down. So either the whole thing was thought up by an idiot, or the labels were put on upside-down.

Somehow, we get the impression that the clerk was either A) kidding, or B) talking thru his hat.