I did as well. Before alcohol became a problem for me I couldn't imagine drinking and driving. The concept was beyond me and I easily laid judgement on people who did. Now I understand how the alcoholic brain can rationalize anything to feed the addiction. My tolerance had become so high that I would seem "normal" to people but I was way beyond the legal limit. I am almost 4 years sober and I am deeply grateful to not have to argue with my addiction about appropriate behavior.