One of the most controversial forms of artwork is street graffiti. It has been prevalent since centuries and has matured and refined over the years. It was used by the Romans as a sign of protest and criticism against their rulers. Street graffiti is still a common way of expressing political and satirical remarks on the walls of both public and private property. But conversely, it is also considered as a devious and notorious form of art as it exploits and harasses public and private possessions.