Yeah this is actually really specific to my experience and I'm glad someone started this thread. Back bedroom of a house I investigated in Colchester, 2019. Small brass ornament kept being found displaced every morning - always the same ornament, always moved maybe 30-40cm to the left. Nothing else in the house was touched. We set up a cam and caught it shifting around 3am but the footage quality was poor enough that sceptics would say lens distortion or whatever.
The room-specific thing is what gets me. If it was the building settling or vibrations from the road you'd expect random distribution across the whole house. The fact it concentrates in one space suggests something is localised there, maybe attached to an object or the fabric of the room itself rather than following people around.
Has anyone here tried doing baseline EMF sweeps of the room versus the rest of the property? That comparison data would be genuinely useful to see if theres a measurable difference correlating with the activity zone.