It is a definite for sure, the marks made by people who tread in our lives. Some welcomed and some unwelcomed. A technique called "The Eraser" has been conceived. The Eraser conceptually works through the total annihilation of every traces, object memory and channels of communication between an individual and a somebody.
So drastic the measure was that if one was to initiate contact with the person subjected to ex-communication one phantasmal day, even they could not.
The tip of my Eraser still runs warm.