Before the discovery of toxic chemicals and cancer causing agents, cigarettes were smoked freely in the presence of others and indoors. It went this way until the middle of the 20th century when the public perception of the act began to change (this was before there was any acknowledged alternative to smoking). Most recently, the noticeable harms of second-hand smoke have led to the ban of cigarettes inside public buildings. Since the ban, the public disturbance caused by tobacco products has
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