Nicotine. Is it more addictive than Heroin?
Why Yes!
P.S. If you work at Alaska's building on International Blvd. south of Sea-Tac, you'll be under the approach to runway(s) 34 L & R. Will all that jet-exhaust coming down over you cause you problems? Hmm.
Oh, and pray (grab a card from catering) that no-one escapes from the near-by Federal Detention center...