This type of behavior can be likened to the capture and traumatic displacing of a South American Scarlet Macaw. This is now an in country parrot that plucks its feathers out for seemingly no apparent reason at all.
However, stress and detachment, same as the need to be alone with their addicting drugs causes both the addict and bird a horrific disfigurement.
"There is only one thing worse in this world than a now reformed bible-toting whore: The fact that she used-to-be an opium addicted feather plucker as well!" Gravy111