Odd how:
Tobacco smoke is taboo / deadly
whilst
Oil smoke is OK / harmless?
BiL is a reformed smoker and, unlike Slasher, will stand in the street with buses and taxis dieseling past and complain about a smoker several yards away.
My ol' skip on Viscounts used the OM as the signal to light up the last of the flight.
Haven't smoked for years - must have a nice Cuban one of these days - and a decent cigar as well