Some stories I start, and don't get around to providing any manner of satisfaction at the end. I'm not quite sure they are unfinished, as much as without an ending, the ending left for some future time, or simply left in limbo.  Mostly such stories are attempts to spark my creativity, sitting down and writing something when nothing else presents itself.  I wrote them a while after I had stopped getting to my Misplaced Self on a regular basis, and sought to spark some fictional thinking.  They're not really unfinished.  They're just sketches.