Cigs are all I think I've ever been truly addicted to. But I came close to alcohol addiction when I was going through some hard times in Turkey: had to dodge a family for a few months who were desperate to hurt or kill me, and the stress drove me to drinking on a daily basis, sometimes morning to night. Not sure how I dodged that bullet, really, and avoided becoming a full-blown alcoholic (runs in my family), but I did, somehow.