Nancy Young said:Levelwave© said:
Nancy Young said:Here's my question. I understand you scan your stuff
and then put money (or, I assume, a debit
card/whatever) and away you go. How exactly do they
know you scanned everything? What's the technology?
Because you know people would be taking the five finger
discount left and right if that was possible.Your grocery bags are atop a digital scale. If the weight
changes and you haven't scanned anything then you'll get
a friendly little reminder to "please remove the last
item placed in bag"...
Yep. It's my guess there are two scales. You take something
out of one bag and put it in the other bag. If the pre-
scanned bag lightens up a notch, and the post scanned bag
doesn't detect an equal heavy-down notch, and there isn't
some sorta scan in between, sump'ns rotten in checkmark. Or
maybe it's just a pre-scan scale and any up-notch must be
matched by a corresponding scan. I notice the pre-scan scale
knows when it's empty and starts asking for money.
I suppose one could scan a can of tuna for a like-weight can
of caviar (or whatever) or some other nefarious scheme.
Maybe that's why they aren't open without a live check
droid. You know we'll start hearing about large auto-
checkout counter scams just as soon as the dirtbag
contingent gets the range.
nb