Oh, pish and tush. There's no reason to postulate worm holes, coat hanger transmogrifications, or disruptions in continuity of the space-time continuum. This thing is just another example of Uncle Phil's Law of Selective Gravitation, which states that gravity is *not*, in fact, a constant. Gravity is stronger in some places than others for many things. An obvious example -- flatpick gravity is especially strong inside guitars. How else would you explain the fact that flatpicks fall inside of guitars rather than falling towards the center of the earth until the floor catches them?

My spare bedroom/office has especially strong flatpick gravity and they litter every available surface. Unfortunately I can't get them to go anywhere else with me, though I wish they would start following my guitar around. Oh, and paradoxically there is negative thumb pick gravity in the same room and thumb picks disappear forever as soon as I set them down in there.
- Phil
For extra credit use Uncle Phil's Law of Selective Gravitation to explain the peculiar behavior of buttered toast when accidentally dropped in the kitchen.