I've known quite a few people that drink and drive, some will have just one more than they should and some would drive very drunk. I've never met anyone who has said at the beginning of the night i'm going to try and not to drink drive tonight and have bought out extra money for a taxi, ever! The kind of person that drink drives has no concern for anyone else on the road, they never say i wish i could stop drink ddriving as i would hate to hurt someone. So i've got no empathy for drink drivers at all. It's not insanity and it' got nothing to do with the effects of alcohol, it's just plain not caring for anyone but yourself.