We had a lot of users keeping their only copy of files on Zip disks. When the Zips started dying by the truckload (remember the 'click of death'?), my boss told them they should be saving files to their C: drives.

Doesn't take a lot of pondering to see where this is going, does it? Wasn't long before we notice there were still no files in My Documents, but tons in the root of C:

Argh