[Red Badger]

It's called Murphy's Law of Universal Gravitation.

It states:

A dropped part will always roll (or in this case float) to the farthest, mos inaccessible place and/or to where it can cause the most damage.......

[tumblindice]

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.