Secondhand Smoking Hoax

The Second-Hand Smoke Hoax was the Global Warming Hoax of the 20th Century. As a result of this witch hunt, smokers around the world are now stripped of their smokers' rights and banned from smoking anywhere.

Origin of the Myth
While it may be hard enought to accept the idea that smoking itself is harmful (only side effect I know of is increased "coolness"), some groups such as the bacterially biased Centers for Disease Control, or the left-wing lobbiest group American Cancer Society, among others, have even gone so far to say that a person being in the same room as a smoker is unhealthy!

Claimed Effects

 * Addictive - Some claim that cigarettes are highly addictive, but yet you hear stories of people quitting all the time.