cops smoking cigarettes LAPD caught and the follow up Smoking and Law Enforcement: The – Policeman smoking cigar as Bay

Others have pointed out that consistent epidemiologic data indicate that active smoking of some 45 cigarettes per day may not be associated with a significantly increased risk of lung cancer and since average doses of ETS to nonsmoking subjects in epidemiologic studies are several thousand times less than this reported intake level, the marginal relative risks of lung cancer and other diseases attributed to ETS in some epidemiologic studies are likely to be statistical artifacts, derived from unaccounted confounders and unavoidable bias [30]

"It was against his instincts

The use of color in Skull of a Skeleton with Burning Cigarette (1886) by Vincent van Gogh

Health Policy 9 , 183196 (2011)

They are not pocket-friendly by design