In the U.S. folks are fast approaching "tax day" which I understand to be the second heaviest mail day of the year.  The first heaviest is the last day before Christmas that packages and cards can get to family domestically at standard rates.
At tax time people make lots of photocopies.  Often of W2s, 990s, and so on.  Each of these documents contains your name, address, and social security number.
These days most photocopiers contain a hard drive.  When you take a photocopy, the image can be left on that hard drive.  It is the reason a photocopier can scan many pages in a short period of time and then start the copy process.
All it would take would be one unscrupulous Kinkos night time employee after a heavy night of copying to swap one hard drive for a fresh drive.  Potentially 100s of people could have information stolen this way from a single photo copier in a single night.
Makes you think that you might want to own your own copier...
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