One of those days

[Frank S]

I dare say that there is probably not a single person alive who can lay claim to have never mislaid misplaced had something that they were dead certain should be in one place only to find it in another or never find it at all or find it only after replacing it.
Just a few months ago I was rebuilding my 8N ford I had all of the steel oil and fuel lines off tied together in a bundle after cleaning them. When I went to reassemble the tractor there was one line missing the one from the governor to the oil filter. after searching hig and low for a week I decided the heck with it and made a new one. it wasn't until after I had the tractor running that I found the errant oil line laying on top of the very table I had been working from. No the table wasn't perfectly clean but at one time or another during the reassembly everything on that table had been moved from one end to the other to clear a work space So my question is if the oil line had not transmogrified into a parallel entraphy and returned where was it
Have you ever disassembled something with several bolts dropping then in a can as you removed them only to find you were 1 bolt short while reassembling? then replace the missing bolt with a new one only to find the missing bolt in the bottom of the can after the job was done? Of course you have we all have at least once in our lives.
I like Marv's explanation however I think the quark or Higgs particles sometimes become over active. or maybe it is simply dark matter that hids things from view at times.