You have not changed one tiny little bit. I still remember the time you hacked the Budgens on the roundabout in Cherry Hinton to find out if they'd stopped stocking Idris ginger beer!
Yes. It's the sort of thing generally considered "thinking about it too much". I guess it's unlikely what you do will make more grape juice. But if you want to know, there's no better way than asking customer service, is there?
*hugs mightily*
*hugs*