Already did. When my younger sister hit adolescence, Things started to go on in the house.----Now mind you this was some years before I began my Paranormal studies, and had never heard of this association with Poltergeists.
We(the whole family) would hear "Hard object" Knocking on the walls between closets in the bedrooms that would go on for almost a minute or so, and also knocking on the wall between the living room and kitchen. We would walk right up to it to examine it in progress. Once, objects flew off the mantle (like my model ship) as My sister walked by.---- I saw it happen, the consensus being a "Ghost" had thrown it at her. ----I hollered at her for breaking my model, but , I saw it HOP OFF the mantle, zip past the back of her head, and land on the floor some four feet away.
Years later, my research told me This was "Poltergeist" activity, and associated with adolescent or "disturbed" young girls or mentally ill adults.. My sister was the right age and also a bit neurotic.---Then I was able to put the pieces together.
IMHO we may be dealing with unconscious Psychokinesis emanating from the person in question. Likely based on some kind of Quantum entanglement thing that causes objects to change position based on affecting certain wave attributes of matter that determine POSITION in space in our 3D universe.