
If the bar code is all that hot, why are there so many instances of carpal tunnel syndrome?
Used to be a time when cashiers in stores would have to ring up each item on the grocery conveyor. Then bar codes came along, nullifying that. Somehow, that didn't stop CTS.
There's something irritating about hearing those electronic blips every time an item is scanned. Ever hang out at a Wal-Mart by the checkout lines?

You'll go nuts inside 15 minutes, guaranteed.