Even if he can't hear you, he can still see your lips move and know what simply minding your own business while driving. Drivers utilizing road rage techniques are often breaking traffic laws. And you don't want that driver to end up injuring himself or others. A last thing to consider is what happens legally to those caught in road rage. There are a few ways in which road rage can be prevented.
Education is the top prevention method.
Many public and private organizations have launched education campaigns to teach drivers about their own behavior and how to deal with aggressive behavior of other drivers. Education campaigns have been developed by government agencies such as the National Highway Traffic Safety Administration, by the National Safety council, and by the AAA Foundation for Traffic Safety. The media is a willing partner in educating the public about aggressive driving. Radio and television public service announcement, such as the ones developed by the AAA Foundation for Traffic Safety is a popular way to increase public awareness. For example the Nashville Tennessean provides readers with a list of alternate routes to ease driver frustration and reduce road rage incidents during construction.