fag as cigarette This artist creates drawings on rolling papers., In the UK, the word ‘fag’ is a colloquial term for a cigarette, but it is also used a homophobic slur. This play on words inspired British artist Cigarette - Wikipedia

Maybe the chasing and biting part, but theyre very good at sniffing

People who smoke cigarettes are 15 to 30 times more likely to be diagnosed with lung cancer than nonsmokers, according to the US Centers for Disease Control and Prevention, which also linked cigarettes to cancer almost anywhere in the body. Research cited by the FDA indicated a ban on menthol cigarettes could lead to a 15% decrease in smoking overall over the next 40 years, preventing between 324,000 and 654,000 smoking-related deaths

It is on the underside of the tray

It would be likely that a very small proportion are current smokers. What Additional Criticism Is Facing the New Studies on Smoking and COVID-19