Who are these people who insist on using their windshield wiper fluid while they are driving. I realize their cars are so filthy they must use windshield wiper fluid in lieu of a good cleaning (remember folks, we live in SoCali where there has been no rain for months). But while driving? What, you didn't know your windshield was filthy before you pulled out of the driveway? You think since your car is so filthy that the rest of us must have filthy cars too, and therefore do not care that you just spewed Windex all over our cars? 'Scuse me?