CUAN4life

I was wondering if this could hold up in court...
Now I know if someone fails a drug test they can not claim they were around people smoking, but did not inhale ( the Clinton Defense) as there is not thc in second hand smoke. But is it not possible that if you are in a car (hot boxing) with friends or even a concert or something where there is a large concentration of marijuana smoke that you would inhale first hand smoke, because joints and blunts do emit smoke from the end that is burning and that would be first hand smoke. In theory if there was enough of this smoke in an enclosed area that someone could breathe in and it show up in a drug test.