Granted I only know of this jail eating defense mechanism from popular tv shows, and ground breaking documentary's like Boyz in the Hood and characters like Toothpick from Don't Be a Menace to South Central While Drinking Your Juice in the Hood, but that there is a prison elephant if I've ever seen one.
And you my laugh at my limited, honky-like knowledge of prison and 'hood eating, but I'll have you know those movies served me well. I never lost a single dispute over a cinnamon roll, breakfast muffin, crescent roll, or the last piece of an Italian loaf in my life to my brother or sister. I went straight prison rules on them, scarf and hoard, scarf and hoard.