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Food & Alcohol - Supermarket
Scanners
- While at grocery store, record the beep the
machine makes when the cashier scans your item. Then while the
cashier is scanning your items through, play the beep when it's
supposed to beep, either with a cell phone or small playback device
in your pocket. If the item scans correctly there will be 2 beeps
and you can complain the item was scanned twice. If the item doesn't
scan correctly they'll hear the beep and assume all is well, giving
you a free item. This requires some experimentation and practice to
get good with.
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Food & Alcohol
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