I keep thinking the thread title sounds like a paranormal soap opra.
Sort of. Had it moved overnight it’d definitely be paranormal, though I don’t have night vision cam.
Before I taped the corners, you could put one foot on it and the other outside it, and try to slide it and it wouldn’t budge. Yet the weird thing is, as much traffic goes one way and returns the same way, you’d think it might even out. Maybe go sideways. I expect it now to buckle as the “back side” tape gives way and the front holds. Back side needs a line of tape.
I’ll update in a week or so.