I haven't tried it, and I don't have an interest in doing so, but I had a roommate last year who was very much a stoner. She smoked twice in the dorm room before I got her to cut that crap out; even though she only smoked in the bathroom with the door closed, the smell gave me a headache and made me feel nauseous.
No, really, it did. Plus it stank up the room something fierce. Didn't let her smoke in the room for the rest of two quarters (after which she left).
Her overall behavior turned me off of the idea of trying any drugs ever, but granted, she had other problems. Serious other problems that I'm certain had little to do with weed.
In any case, I don't like the prospect of not being in absolute control of my mind and body (as I found out when I had to take some strong painkillers after my wisdom teeth got taken out), so smoking, taking anything, or getting rip-roaring drunk don't really appeal to me as ideas.