i can tell you this i've heard don't know if it's true that there are alooooooooooot more drunk driving accidents when drunk than stoned....and it's in my beliefe that since marijuana causes paranioa for most people that people are alot more cautious...mostly because they usually have some on them if they are stoned and don't want to go to jail...atleast that's how it is for everyone around me that drives stoned or dirty.