Cycleman,
You'll be happy to know that back in 1994, I did just that. Was in the left turn lane behind a woman on a Summer day, about 95 degrees and I didn't have AC in my truck. My nerves were a little frayed the way it was.
She was almost through the intersection when the light turned yellow. She slammed on the breaks. I nearly rear-ended her. I cursed moderately under my breath, then moments later, she flicked her cigarette out and it bounced off of my windshield, then onto the ground.
I got out of the truck, picked up the cigarette butt and hustled back to my truck as the light turned green. Then............ she made her mistake: to took the next immediate left she could take into a Shell gas station.
I followed her around, pointed the front of my truck toward hers, got out and approached her. She was looking down into her purse (completely oblivious to me walking in her direction) when I screemed into her rolled down window, about 18 inches away from her, at the top of my lungs...
"YOU FU$%ING DROPPED THIS YOU FU$%ING BI^$h!" as I threw the still lit cigarette into her car, bouncing it off of her neck/chest.
I can remember the spit flying out of my mouth, a half second of silence, then her screaming like she was in a slasher flick. I stared at her for a couple of seconds, then beat a hasty retreat to my truck and got my Toyota out of Dodge.
I've often wondered if she has since changed her behavior.
In retrospect, it probably wasn't the smartest decision to throw a lit cigarette that close to the gas pumps, but Kay Sara Sara (channeling my inner Doris Day).