On Sunday, September 1, 2019 at 9:14:01 AM UTC-4, Gary wrote:
> Pamela wrote:
> > Some people put sandpaper in their document shredder as it's said to
> > sharpen the blades.
>
> Unbelievable, the claims posted here. LOL

Never underestimated human credulity. How big a step is it from
some blogger posting "I wonder if sandpaper would sharpen shredder
blades" to "Hey, everybody! Here's one weird trick to sharpen your
shredder blades."