Paint by Traffic

(YouTube Link)

At the Rosenthaler Platz, an intersection in Berlin, artists poured paint on to the street to see what images cars, buses, and bicycles would make with it:

The various colours of paint were dumped onto the road in large puddles at different locations throughout the intersection. As traffic drove through, the paint was spread around creating lots of colourful lines. The whole action took only a few seconds: bikers had poured paint from big boxes in front of cars that waited for green lights. So the cars and their wheels, if the driver wanted it or not, became the brush tool for this guerilla public art piece.The creators of the project posted signs on post nearby explaining that the paint wasn’t harmful and would simply wash off with water

Link via Urlesque

It may wash off with water but it's still a form of vandalization. What if you just washed your car? What if you were on your way to pick people up for something important? Then lets talk about getting the paint thrown up into the engine compartment and all over the undercarriage. A simple hosing off of the car isn't going to handle that. Stupid and thoughtless.