To be honest with you its not often that I'm not stoned when i drive. I have been doing so for many years now and it is normal for me. I'm not saying that it is a good thing but with my medical illness smoking is the only form of release I get from the pain. To sit in a car is hard on my body so i smoke to get my muscles and nerves to relax. Over the weekend I drove over 600kms, with two mates following in their car. We stopped for a J bout every hour.