On the plus side, the homeless could always know if anyone stole any of
their junk, not to mention easily manage their diet.

  ----- Original Message -----
  From: Jason
  To: "Microcontroller discussion list - Public."
  Subject: Re: [OT] I wonder what company would let such
  aproductoutthedoor.Naw, it couldn't be ...
  Date: Sun, 10 Dec 2006 18:41:07 -0800


  From: "Herbert Graf"
  Sent: Sunday, December 10, 2006 4:13 PM

  > Which would fail since the cart would detect the RFID tag of the
  first
  > item, note it's weight, and then determine the actual increase in
  weight
  > doesn't match.

  First, not when 1 item is a 20 pound bag of flour and the other is a
  2 ounce
  memory stick. Second, now you're talking about a scale in every
  shopping
  cart along with the computing infrastructure to support it and
  probably and
  RF link. How much are stores going to pay for shopping carts,
  especially
  when carts are stolen all the time.

  > Checking out in 5 seconds vs. 10 minutes? HUGE advantage IMHO.

  > You're kidding, right? MOST people never even look at receipts,
  they
  > just pay whatever the cashier says to pay.

  Everyone I know checks their receipts. Even if most don't now,
  they're
  going to start when they repeatedly get home with items in their cart
  that
  were added by pranksters and hear horror stories of all the items
  people
  paid for because the scanner read a stray tag.

  Also, you can wait in line behind me and people like me a few minutes
  each
  while we check the receipt :). Then you lose the speed advantage
  anyway.

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