I know there are people who budget their pipe cleaners, thinking to economize by never spending more than 2 cleaners when cleaning a pipe
these include smoking or chewing tobacco, drinking alcohol, poor oral hygiene, smoking crack cocaine or other street drugs, using peroxide-containing mouthwash, radiation therapy, trigeminal neuralgia, using drugs that cause xerostomia like anticholinergics, antihypertensives and antidepressants, and antibiotics such as tetracyclines and penicillins[11]
International Journal of Environmental Research and Public Health, 20(5), 4526
Anyone who does smoke should do so outside, as far away from others as possible