Just my opinion here but people who drive under the influence are self absorbed, immature, sociopathic, losers who are partly to blame for giving the prohibitionists some of the only legitimate arguements they have.
So, I know you think "I can drive better when stoned" or whatever but that is not the point. If you get in an accident or hit someone whether or not the pot was to blame you are fucked, and it reflects poorly on all of us. It's called being responsible!