Having dealt with parts that fling themselves away from me over the decades, I've come to believe quantum tunneling at the macroscopic scale exists. As well has micro-wormholes in space.
As a teenager, I personally watched as a dropped part rolled under my bed that was bounded by two walls.
I could not find that part with a flashlight nowhere in vicinity of my bed.
Later on, I eventually found it under the center of my chest of drawers 6 feet in the opposite direction. The object wasn't even round.
This gave me better insight in to the sock disappearances that occur with clothes dryers.