Sociological mindfuck. It's among our favorite sports. On a MUNI streetcar last night going home we glanced over at the emergency procedure diagrams and damn near fell over laughing — because for a couple of truly glorious seconds we thought this was the real diagram. (Without hesitation we reached for the camera.) We can't really call this “defacement” so we'll call it “enhancement.” Rarely has a big black Sharpie been put to such good use.
But whoever the artist was, he (or she) didn't stop there.