@cicerone imposter,
I suppose that must be conceded but it is known that the lungs of third parties are stained by the exhaust fumes of the well-seasoned international traveller and they are very often the lungs of those who are too young or too poor to travel. The smoker, if a polite person, only stains his own lungs and bears with patience not only the contempt of the readily indignant, self-righteous lung puritan but also the impositions of onerous taxations which contribute significantly to the welfare of society.
But it is well established scientifically that the inhalation of the smoke of some herbs is beneficial to the imagination and other aspects of brain function and results in a style of communication with others which, in its range and modes of expression, is entertaining for them and which produces a degree of inventiveness which the unaided brain is incapable of.
The non-smoker is obviously unaware of those benefits and is so deficient of understanding that he is unable to even appreciate that they exist.
Thus, the non-smoker, denies his companions those delightful and useful advantages in the service of dragging out his insignificant life and of being a constant and unremitting drain on the economic efforts of the young for as long as maybe and of inflicting his boring, unimaginative and futile mannerisms upon them for a similar amount of time and all the while remaining blissfully and self-complacently ignorant of the considerations involved so that he might concentrate on the only matter remaining to him: the perpetuation of himself and the capacity of his pristine lungs to bore the arse off everybody he comes across which then makes it necessary for him to seek solace in short-term superficial relationships which he encounters on his travels with others of the same ilk and which are what make travelling such a wearying and tiresome business.