Pentropy
pentropy (pen-tro-pee) n. The tendency for the ballpoint pens at rest to suddenly and surreptitiously take flight or disappear, until none remain. (Once thought to be the result of filching co-workers, now believed attributable to the inexorable contraction of the universe.)
pentropic (pen-tro-pik) adj. Having the property of pentropy.

The origin of the word is attributed to St. Louis theater publicist and blogger Brad Graham, who is also credited with the term "Blogosphere"
Pentropy has been placing an increasing burden on our office supplies budget.
Pentropic events have been creating a lot of tension in the office today.