Originally Posted by Weednuts
Second had cig smoke does not kill. That is as false as any marijuana propaganda you've heard. The internet has plenty of info on how these stats are skewed. Don't get me wrong....I know smoking is bad...and annoying for those that don't.
As far as the topic at hand. Well, here's how I see it. The answer is both a yes and a no. I know for a FACT that directly inhaling someones exhale "can" get you high. It's all in how much the person has absorbed. Sure, someone mentioned that THC is absorbed right away...BUT, it is possible to have a high enough volume in your lungs that a portion of smoke is not absorbed. Haven't you ever taken a big hit and when you blow out the smoke is still thick? That's the type of hit you can blow into another person and they will feel it. Sometimes if I take too big a hit I'll kick a little out and breathe in again to break up the smoke inside. Much better than choking out the whole thing. So, my opinion is that it is totally possible to exhale at least some THC.
As far as a concert goes, I agree with the doc...only because of the volume of fresh air around you. But if you're a few people in a car or tent you most certainly can get a second hand high.
The bottom line is if you take in a hit the only way you can absorb all the THC is if every particle of smoke touches the surface inside your lungs...and that is just not likely unless you take tiny hits and hold it in a long time.