Rooms that have frequent use of smokeleaf, flake, or other to be implemented smokeables should eventually develop a fog of smoke that will slightly increase the resistance of any in the room to some degree. Ventilation should help to some degree and an extremely low addiction chance rolled upon entering.
Additionally Teetotalers should be averse to staying in such rooms despite any level of excellence. "Ugh it's a drug den in here!" -10 expires in 6 hours
Hmmm, not sure if we want to bother with another micromanagement of smoking spots (most probably outside). This would hit sea ice play hardest, since you can't quite offer to go outside.
Doesn't seem to add much to the fun scenarios, difficulty or theme.