A recent study published in this month’s issue of Journal of Applied Social Psychology has reached the conclusion that drivers with bumper stickers might have a significantly more aggressive style of driving.

The research was presented by William Szlemko, a Ph. D. student of social psychology at Colorado State University. The conclusions are that drivers who personalize their cars, whether is a bumper sticker or a set of rims, have the tendency to react with signs of aggression in a large case of scenarios. The student also added that the owners of such cars are 15 percent more likely to fall into a road rage state.

The given explanation is that drivers who mark their cars with stickers tend to consider the road their own personal territory and just like with any other of their possessions, they feel the need to defend it against all intruders.

Szlemko explained for the Washington Post that one of the study’s tests involved a car not moving on a green light, in order to determine the level of frustration for the drivers waiting in line. According to the results, the horn was heard 2 seconds faster from the cars with bumper stickers.

There are thousands of such bumper stickers all across the United States, not to mention new flashy rims and it is hard to believe that a car with a God Bless America sticker, a Children On Board sticker or a Visualize World Peace message should be considered more dangerous than a car without any markings. On the other hand, it couldn’t hurt to be a little more careful when it comes to car with statements such as My Kid Beat Up Your Honor Student, Don’t Mess With Texas or An Armed Society Is A Polite Society.