You know what? Your right, when someone's mad it is a moral issue. When your face gets shot, and you mad about it, it is not a question of fact but a moral question.

Shooting a gun is one thing, the trajectory of the bullet is another thing.

Smoking is not just you. Because of the public effects of smoking, I will be affected and I should be asked to consent. If you see my consent or lack thereof to you smoking as a moral issue than I see your non consent to your face being shot as a moral issue to be corrected.