Zero tollerance. I will admit to doing it in my younger days but will all grow up.
Drug driving has got to be the worst. Especailly with people coked up or on speed. Risk taking goes through the roof then.
I also remember my mate letting me drive his car in a field while I was mangled on acid. It scared the hell out of me and i was only doing about 4 mph in first gear!
Anything that distorts your perception has to be taking with zero tollernace when driving is involved.