Cigarettes.

1) No, I don't smoke. And I'll never smoke, like my mother before me. Besides that, I'm a little bit allergic to it..or something. I dunno, I can't breath around smokers.

2) There are some guys whom I'm friends with who smoke, but I request that they don't do it around me. Hell, my brothers smoke, and they have enough courtesy not to do it around me.

3) Well, no. It wouldn't. But if they liked the same way I'd like them, I don't think it would be so wrong to try to quit for me. If they couldn't, they shouldn't expect much when it comes to kissing. I sure as hell wouldn't french the guy. And if they refused to quit, I'd get over my feelings for them and just have them around as a friend.

Other than relationship-wise, I could care less if guys smoked. It's their lives. Not mine.