Oh, this is an easy one to answer.
No cigarettes because I'm mildly allergic to the smoke. (Not to mention that the residue odor is nasty as all hell.)
No pot because it's illegal, and I'm highly, perhaps near deathly, allergic to it. My only exposure to it was at a park; I was under a pavilion, and someone lit up on the other side of it. A gust of wind brought the smoke my way, and I felt my trachea starting to close up. If someone knows this about me and proceed to do so anyway, I WILL hurt them.
And alcohol... I've yet to find one I actually like the taste of. I've tried beers (domestic and import), wines (of red and white variety), even some sake and mead. And they're all bitter to me. Every once in a while, I'll have a drink (always single in unit) to unwind from high built-up stress, but it's not something I do often. Those who want a glass of wine with dinner I've no problem with, but I won't get along with those who think Friday night means going out to get drunk.
-dunno001
-On a quest for the truly perfect game; I don't think it exists...