And there's the `parallel universe' theory for lost fasteners: after giving up searching in disgust,
then spending 15 minutes finding a replacement in your bins & returning to the job,
that little screw will re-appear.
10 minutes searching for lost or misplaced part.
10 minutes looking up parts list and part number.
10 minutes filling out parts requisition.
10 minutes waiting in line at stockroom to get part.
cost of original part: $0.10.........