Give them plenty of space. You should put as much distance between your vehicle and the other car as you can. However, by changing your attitude toward driving, you can make every trip more pleasant. We all make errors when driving, but we don't do them intentionally, so don't assume the worst about the other driver. Allow plenty of time for your trip.
Drivers increase their own levels of stress by trying to beat the clock.
When time is short, everything that interferes with it becomes a potential source of rage. Plan ahead and arrive safely. Create a relaxing environment in your car. Play relaxing music or listen to a book tape. Adjust your seat comfortably and keep your car interior free of clutter.