Never anything thrown at me (yet), but I have been squirted with windshield wiper fluid....a bunch of kids in a car cleverly turned the mechanism so it would squirt sideways rather than on the window and they had a great time driving down the road squirting cyclist on a large group ride last summer. I got hit in the eye under my sunglasses. The little sh#@!s...wish I could have gotten the lic plate number, not for the police, but for their parents.