True Surprise
One of my favorite ER patients was a guy who got stabbed in the chest by his girlfriend with a 10" serrated bread knife. Came in with the knife still in him, buried to the handle. Bellowing that this proved ... something about him. He was clearly pumped. But not really bleeding. After a chest CT and removing the foreign object from his chest, there was still no real bleeding. The knife had gone in at a bit of an angle, but what really saved him was the fat. 10" of steel and it never made it to the pleural cavity.First case report I'm aware of where fat was cardioprotective.