Fun story: I have one of these, and wore it every day while working as a vet assistant at a pet clinic. One day a kitten comes in with a cord knotted around her neck, and everyone’s trying to get it unknotted before she heads in for her spay.
I just whip off the hair clip, grab the cord, and slice through it in one go. Everyone stood there, surprised, and stared at the cord in my hand that I just sawed through with a hair clip.
This would be AMAZING if you got kidnapped, or, in this case, a pet gets tangled in something. It’s very light and flexible, but the insides of the teeth are sharp enough to get the job done.