Anybody else out there ever wonder, as I do, why fast food joints don't offer something else to drink besides those nasty "fountain drinks"?   As, maybe, fruit juice, or milk, or even one of those flavored WATERS you see in groceries now?  Dare I suggest V-8 with one's burger?   Or perhaps one of those fruit-veggie drinks that are on the market now, to sneak a little carrot juice into the kiddies?  Personally, I could go for a nice glass of cold cranberry juice with my chicken sandwich