Believe it or not, but this has happened. Rie Prettyredbone Phillips took to Facebook to share this scary video of a chicken piece moving on its own. The chicken piece is skinned and cut into pieces and can be seen trying to "escape" out of the dining table. Turns out, in rare cases when the meat is freshly cut, the muscles of the animal or mammal may flex for some time even after they are dead. The muscle cells don't die immediately and therefore sometimes the muscle cells begin to randomly contract as it is still alive.