smoking cigarettes cause sore throat causes mouth and cancer Sore Throat From Smoking: Causes,

Albeit, lighters without fuel are allowed as checked or carry-on baggage but refills, paints, lubricants are not allowed

Quitting smoking may be good for your brain, even if you stop later in life Science Says Quitting Smoking At Any Age Is Good For The Brain A new study suggests that quitting smoking even in middle age or beyond can slow cognitive decline

While passengers were still aboard, Cooper went into the lavatory with his attach case and emerged with the case and an additional bag, which presumably had come from inside the case

Contrast this with a good for which demand is elastic, illustrated in the right hand panel