Why would you want someone else packing your bags?
I mean, you've gone to all the trouble of putting the shopping onto the belt in the right order, you've brought just the right amount of bags with you (freezer bag, cloth bags for the heavy stuff, normal bags for life for the other stuff), and you know exactly where it all goes when you get home. So to get a stranger to pack them means they'll put everything in the wrong bags, and probably have to use more bags, and squash the bread, etc etc.....
Omg, I've just re-read that..... yep, it's official, I'm a freak!
