I used to be a neuro tech, and I remember one patient coming in for a carpal tunnel test. She looked horrific - a gas heater had exploded and sprayed her a few years before, and all visible skin looked melted - she looked a bit like a skeletal-muscle model, as the melted skin had pooled in the divots between muscles. But what really struck me was that the only part of her skin that didn&#x27;t look melted was the palms of her hands (and the inside of her fingers). They&#x27;d healed just fine, and the border between healthy palm and melted skin was like a knife edge.