I have never been addicted but due to my genetics (IMO) I have a very high tollerance. In college my friends knew I hardly ever drank and could drink them under the table. Even as young as high school and a whopping 120lbs I could take 2X the codine my father could and he was over 200lb. So some of it may also depend on your natural ability to metabolize alcohol. Dunno... just a thought.