In some cases, security might require you to put it in a liquid carry-on bag for inspection
Smoking a cigarette yields 0.5-2.0 mg of nicotine to the smoker but eating the cigarette (or other nicotine product) is a whole different ballgame as all of the nicotine becomes available for absorption into the body
Xiao Y, Xie T, Peng J, Zhou X, Long J, Yang M, et al
Several years later, a woman in a Chesterfield spot, shown lighting her partner's cigarette, said coyly, "Somehow, I just like to give you a light." The Chesterfield slogan, "They Satisfy," drove home the message: female sexuality and tobacco use were now celebrated." By the 1930s and 40s, the use of female sexuality to promote tobacco had even migrated to the tobacco farms of the Southeast
It can also occur because of: Overexposure to Certain Flavours, dehydration, individual variability and smoking history