House Gremlin!
I'm starting to think we're not the only ones living here!  I've been suspecting for some time that we have a house gremlin, but I haven't been able to prove it yet.  I see a pattern, though, and I think the little critter is just messing with me!  There's a place for everything and everything is in it's place..... so my rule the theory goes.  Then, one day, something is not where it has been kept for years and years and there is no explanation for the bizarre disappearance of this object.  The crime scene is taped off and an extensive search begins.  The missing item is nowhere to be found and it is eventually believed that the house gremlin has been at mischief again.  That is, until mysteriously the item is found in a place where it never even belonged!  I really have no clue how this keeps happening.... but one day I'm gonna catch me that gremlin!