One time while driving to the 7-11 to refill our beer supply, A friend and I were stuck at a red light behind a guy with a bumper sticker that read "Goat Roper".
In my infinite drunken wisdom, I realized that I had a black permanent marker in my car, threw it in park, grabbed the marker, ran up to the rear of this truck, and changed the "o" in "roper" to an "a".
Some asshat is now driving around with a bumper sticker that says "Goat Raper".