I know what you mean. I was on vito cruz st. a week back and these kids were drenching the car infront of me with dirty water even to the point of wiping the windshield with it. They were having fun, but I seriously want to run them down as they tried to do that with my car.
The person in the other car didn't do anything about it and the police was just at the corner.
Thankfully, the light changed before they breached my tolerance of patience.
If I were the girl, I would walk away. No sense in preaching them and getting drenched more. Like the first poster said, I would just like the guy take care of me, probably find a toilet or rush to a convenience store to buy mineral water for me to clean myself with.
edit:
Joseph F, I was also a victim of the modus operandi of a bum being hit by my car. It was even at a stop sign, so I wasn't moving, then this bum pretended to have fallen down on my the hood of my car. He then approached the window on the driver side. I ignored him and sped away. He was even running like crazy trying to catch up with me.
And from MOA, there was also a bum who pretended to get hit by a car in the middle of edsa. The bum contacted the traffic enforcer immediately.
When that happens speed away or raise your voice. Threaten them with an attorney.