You're dropping real facts, no one should argue against these very real risks, and I do know people to whom this is absolutely accurate. I can see this playing out, which is why I don't follow through with it. Myself, I haven't smoked in over a month, because I can take it or leave it. I've worked with the "smoke before-work, at-lunch, after-work" types. I've been interviewed by people who later smoked with me, because everyone does it. It makes you delusional, it makes you lazy, true, true. I've git clone'd code and then edited code formatting pointlessly, just like you. And yet, still better than most of them, somehow. Just walk through the door and, if you can, leave the door behind.