Just how much manflesh does Auld Crummock demand? :)
It depends on the concentration of sanctimonious piety in their essence: one little finger of an starveling anchorite, three hearty yeomen of appetite lascivious.
I like the idea that locals are fully aware of some of these monstrosities but sensibly know how to avoid their perils. It's the fantasy medieval equivalent of knowing not to open spam mail.