So now, as we fume over missing the exit for the New Jersey Turnpike, I find this: bumper stickers are good predictors of road rage:

People who had a larger number of personalized items on or in their car were 16% more likely to engage in road rage, the researchers report in the journal Applied Social Psychology. “The number of territory markers predicted road rage better than vehicle value, condition or any of the things that we normally associate with aggressive driving,” say [Psychologist William] Szlemko. What's more, only the number of bumper stickers, and not their content, predicted road rage so "Jesus saves" may be just as worrying to fellow drivers as "Don't mess with Texas".

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