I think there may be some weird appeal to cigarette smoke with mental illness. A huge portion of us smoke and I know there is research about why.

But I believe this because as someone who has never even tried a cigarette I once craved them like I'd been smoking for years. It took everything I had to not start smoking. Once I was started on a new AP that went away and never returned. Nobody could explain it but it was such a strong craving like I NEEDED something in that smoke. I guess 2nd hand smoke was enough to trigger it? I will never know.