What a jerk, I remember once, on my way home from school, my van passed this one school bus and a kid threw this big white thing out the window (Never figured out what it was), it shattered the whole windshield! There was glass everywhere and we ended up stranded there for about 2 hours. Luckily all the glass missed everybody's skin and nobody got hurt but seriously, why throw something out a window!?
I'm not entirely sure... we were going straight, and passed by them sitting in the left-hand turn lane. They hadn't been behind us at any point, and they did end up turning left and not trying to leave their lane. Nobody else was on the road.
The passenger was the one who threw the sandwich, maybe he was just done with it and we got in the way.
You must have been lucky enough to be able to see through it, then. The same thing happened to me while I was driving home from school in my brother's car a month ago, except what was thrown at me wasn't soda-- it was a milkshake. And it covered the entire windshield to where I ended up almost ramming them anyway simply because I couldn't see.
Now that I think about it, a similar incident occurred right outside my apartment building a couple days ago. What was worse, a deer so happened to toddle its way into the middle of the street. Both cars were lucky enough to not get wrecked by running into trees. But one of them was unfortunate enough to turn that deer into road pizza.
You know you can look them up on the DMV website. I would fill the cup with soda again, go to there home of residence and throw the cup in there face and say "Littering is a 500 dollar fine, here is your trash!"
I'am 100% serious about this. I would hand to God do this.