I rode away dismayed at my lack of impact in this situation. She didn't even care! What's a guy to do? I think I decided that next time I should throw the still burning cigarette stub into the back seat of their car! Opinions? I know it could be slightly dangerous, and no I wouldn't do it to a truck full of rednecks with a shotgun rack on the rear window.
I just feel like smokers don't take account of all the litter they make so they need to have a reason to think twice about it. You might not see it from where you sit, but take a close look as you walk along the beach or a roadside and you'll see that a large fraction of the litter is comprised of cigarette related objects, mostly butts. Sometimes you'll see a McDonald's bag, but for some reason people know that they shouldn't throw out their grease stained paper bag while they can't realize that throwing a cigarette out the window is bad. Especially one that's still on fire.