It seems this mod adds the "Wild man wanders in" Events ..?
since it does not appear in the core game and those "wild man" all wear "Body fix triggers" wich are part of the code from your mod... although they only appear in one location
so:
Does this mod add the "Wild man wanders in" Event?
Is the "Body fix trigger" an Item added by this mod?
(and what does it do?)
Speculation:
It has something to do with "the untold task"? (since it covers the neck, wich is and enty-point for nerve connections?) maybe "results"/waste from some experiments?
Edit: Or its just necessary to make humans animals?

Edit: This Item seems to disappear after a while