Asturias,
You’ve reminded me of an anecdote which I’m sure you’ll appreciate. Flying back to Jakarta from Bali on a Garuda 747, there were no non-smoking seats available. The very helpful check-in lady at Denpasar put us in the front row of the section immediately aft of the non-smoking seats.
Her thoughtfulness didn’t help much, since the non-smoking section was occupied by a bunch of Pertamina managers going home from a golfing weekend. They puffed away on Kreteks all the way to Halim!