[missyme]

That is totally un-true.
Be that I am in the Medical Field and worked in a Trauma center emergency room, this is false, on-coming lights have to do with people that are under the influence of hard drugs and alcohol that make them become dis-oriented and they cross over into oncoming traffic. People need to speak about Marijuana on this thread with more hard facts rather than be judgemental about what they think Pot truly is.

[Lady Jag]

If you worked in medicine longer, you would know that some drugs dilate the pupils and marijuana is one of them. That is why you will see pot smokers turning off lights and avoiding light rather than heading for it. Perhaps PCP and some other drugs cause people to "go toward the light", but you will find those are generally caused by hallucinogens.