Ok so this will most likely be anticlimactic to most, but over the course of the last 5 years on 3 separate occasions have I myself and always someone else albeit different people have seen a particular shot glass of mine go from standing still to flying off a shelf that holds about 30 of them. Like I said I'm a skeptic so I have done ze science!! No pipes in the wall where the shot glass shelf is, no one near the wall on all 3 occasions and when I said fly.. I meant it because that sucker came off with a wide arc and resting far enough where it had no business making it to. It always came with this uneasy feeling that what I saw simply could not be possible. One of the witnesses, my father, also a huge skeptic has a theory that perhaps we're bumping dimensions.. we are just seriously grasping for straws here.. we're at a loss. I've never felt threatened, the only experience is with the shot glass in our house. We've moved it to different spots on the shelf and it's only ever been the particular one. The others all show no sign of movement. I'm still a skeptic but, I'll tell you, my better half is running thin because, simply, what I saw just shouldn't be, know what I mean?