Hey, Edwin, since the onset of sanity there, your lovely state has studied the effects of wacky terbaccy on driving; weed use, corrected for all other variables, correlates to a 1.5% uptick in accidents. Having 2 or passengers with you, again corrected, correlates to a 2.7% uptick.
Peter (Who, alas, seems to have deleted the NORML newsletter with the link to the study. Now if we only knew, oh, say, a NORML BoD member or such who could mebbe point us at it.....)