I don't want to sound condescending, but I think most of us were aware that coat hangers multiply in the warm darkness of a closet. Senoufou, your disappearing coat hangers are a new development. Perhaps your coat hangers are migrating to my closets.

Something similar occurred at my church. I had hidden a cheap tambourine under a pew cushion in the music area, and the next Sunday, there were TWO cheap tambourines there - the original large one and a small, immature one right inside it. Both still under the warm, dark pew cushion.