Bah, I don't smoke. And I hate smoke because:
1) I don't like people who smoke. Personally, I think they're idiots. They are not just killing themselves, but killing everyone around them.
2) The "I smoke cuz I'm cool" excuse seems pointless. A cig won't tell you if the person is cool. Many people in my class smoked and I got pushed to try a few times and both times I got ill for a week.
(Also since then I've grown up, and don't let myself be stepped over.)
3) Smoking can be relaxing for some people because they
think it's smoking what relaxes them. And people might not like it and still do it, it's called an addiction and can only be cured if the person is willing to be cured.
4) Nicotine is actually a poison from the tobacco plant to kill bugs.
Basically, people smoke venom + other stuff.
5-*) Smoking is BAD!