How does that saying go? 'Give a man a fish and you can feed him for a day. Teach a man to grocery shop and he'll come home with beer instead of fish.' Something like that.
Actually, can we really call it fish this guy was after? I mean, what-in-the-fake-fish-hell is Shaggy Dog sushi? But clearly this shopper was really in the mood for imitation food and beverage, since his ultimate decision came down to whether to buy a pack of questionable-looking "seafood" or a case of Seagram's "flavored malt beverages."