Compulsive Completist Disorder
As anybody who has read What We Found in the Sofa and How It Saved the World can tell you, Compulsive Completist Disorder is a personality quirk that compels its victims to complete collections. If you collect Spiderman comics, you need every single issue. If you collect baseball cards, you can't rest until you have your own 1909 Honus Wagner. If you're a Star Wars toy collector, you haunt comic-cons searching for Darth Vader's Toilet Seat, briefly issued with certain Happy Meals until it was deemed a choking hazard, and only considered collectible if the sound-chip can still be triggered to emit a sound similar to what one collector has called "the opposite of Vader's signature breathing noise."
If you are, for some bizarre reason, a collector of the published works of Henry Clark, you not only need a copy of What We Found in the Sofa and How It Saved the World, but copies of the following issues of Mad Magazine as well...
If you are, for some bizarre reason, a collector of the published works of Henry Clark, you not only need a copy of What We Found in the Sofa and How It Saved the World, but copies of the following issues of Mad Magazine as well...
...not to mention copies of these four issues of Isaac Asimov's Science Fiction Magazine:
One can only pity those who not only suffer from Compulsive Completist Disorder but also collect the works of Henry Clark.