The document is a sample persuasive speech arguing that smoking should not be allowed in public places. It begins by introducing the idea that secondhand smoke can slowly poison those exposed to it, even if they don't smoke themselves. The body provides evidence that secondhand smoke contains chemicals that harm non-smokers, including nicotine, carbon monoxide and tar, and that these chemicals can cause minor and sometimes major health issues. It concludes by encouraging the audience to speak up the next time someone wants to smoke around them, and make it clear that they don't want to be exposed to the poisons in secondhand smoke.