Milk's soul is a being that can destroy anything and everyone, the only problem is that it needs a vessel to use its powers. It search for many years, but all it could find was a little milk carton. The vessel needs to have no life. It possessed the carton, and gave life to it. Milk aged mentally, and eventually became a sadistic memey person. He has no idea that there is a being of pure destruction inside of him. He does know that he has weird things like a tongue that is better than the jaws of a hippo, and stomach acid that can burn through anything. He doesn't question it, he just rolls along with it.