cigarette burn on leg burns Burns associated with e-cigarette batteries:

"Incorrectly believing that nicotine causes cancer could discourage smokers from switching to safer nicotine-containing alternatives and could lead nonsmokers to experiment with low-nicotine tobacco products, believing that cancer risk would be reduced," the FDA scientists wrote in the journal Preventive Medicine

A fine, even grind prevents clogging and ensures a smooth fill

Autism Res (2021) 14(9):201726

Nicotine is named after 16thcentury French scholar Jean Nicot, who promoted its medicinal qualities, and in the 1570s Spanish doctor Nicolas Monardes recommended tobacco as a cure for 36 ailments including toothache, worms, halitosis and cancer