Non Destructive Graffiti

I came across this graffiti written in chalk on the footpath bordering the local park. Usually I am against graffiti, but after walking past the first time, I walked back and took a picture of it, as I thought that this was a much better alternative than permanent destructive graffiti. Even though, in this case, its just an outlet of purile adolescent drivel, I could see the legitimacy of this form of graffiti. I have seen posts on "Post It" note graffiti and reverse graffiti in this vein as well.

Done