the airport has a smoking area within departures. it's struck me that i would be really, really unhappy to be sat on a plane next to somone who stinks of ciggies because they have had a smoke 10 minutes before boarding the plane.
thankfully this hasn't happened but it's an unfortunate downside for the non smokers.
nothing to stop someone having a ciggarettte landside but at least the time between smoking and embarking would be a bit longer.