I recall a while back a youtube cockpit video, possibly eastern Europe or the Balkans and possibly a cargo DC9 - an instrument approach where the crew were all smoking and the talk, according to those who knew the language spoken, was of chicken farming and the price of eggs. Anyone still have a link to that? My searches have failed to find it.
The late Jim Lee, of Shackleton fame, used to smoke on the Logi Islander flights up in Orkney, of course most of the pax were smoking too! Neat little chrome plated ashtrays on the Islander in those days. The longer sectors were just long enough for a smoke!