Dude the imaginary cig thing is such an interesting phenomenon. The datura section of Erowid was my favorite place to internet hangout back in the day. My buddies and I were pretty responsible with our uses of things always researched a ton on that site, they had experiences and doses and all kinds of amazing information. The datura experiences were the most nuts stories on there. A ton seemed to involve the imaginary cigs and friends situations. We found some in a church parking lot of all places, collected a decent amount and after researching threw it all away. There was a guy from my highschool that grew it in his parents garden and would take small doses all the time.. I think he later got into heroin pretty bad