I was reading a clickbaity listicle about weird things people find out about their roommates, and this made me think of Zara:
My wife collects all her hair that naturally falls our during the day, whether on the hairbrush, couch, or bed. She then wraps it around her fingers into a little ball and collects the wads in bags. I asked her what she did with all of the Ziplock bags of hair and she told me that she eventually burns them. It’s just a habit of hers and she still can’t explain to me why she does it.
obviously she's just ensuring that no one gets any of her hair to do unsavory cantrips with.