Did you get a #? About 18 months ago some tosspot threw an egg at me, I took down their # and paid a visit to my friendly police officer. They immediately phoned the owner of the car - "oh, your daughter's boyfriend has that car tonight".... "well, I don't think he'll be driving that car again for a while".

They also issued the guy a ticket and a fine. It's not much, but it would have been more if I'd actually been injured in some way.