like i said before, if you think that smoke has enough thc worth keeping it in for, and you still wanna argue with that ^^^ do your own experiment, get a pipe/tube, have a friend smoke a bowl/joint/blunt w/e inhale and exhale directly into it, then you take the reused hits... dont' smoke anything at all on your own, let your friend do all the hitting... i know it doesn't work becuase me and my brother tried it when we didn't have enough to get us both high....