I’ve had a strange thing happening a while ago. I sent a CD in a padded envelope to someone, and it was returned to me. Well, it didn’t look like it was returned, more like they actually delivered it to me instead of to the person I sent it to.
Then I noticed something. I was re-using an old envelope. For environmental reasons of course (read: being so tight-assed, saving money on padded envelopes). I did write the destination address on the right side, so my address was nowhere on the envelope. What was left there however was this tiny printed barcode used by the previous sender with my address.
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