In the 17th century an ingenious smoker came up with the pipe tamper, or stopper, as it's known in England, a tool for pressing down lit tobacco in the pipe's bowl.
According to the National Cancer Institute and American Cancer Society, secondhand smoke is the combination of two types of smoke that is produced when burning tobacco: the smoke that comes from the burning end of a cigarette, cigar or pipe and the smoke that is exhaled by the smoker.