Vandalism

As defined in wikepedia, vandalism is a conspicuous defacement or destruction of a structure, a symbol or anything else that goes against the will of the owner/governing body and usually constitutes a crime. Take for example the above train in Germany, when you first look at it as if it is an art design on the train.

But some irresponsible people vandalised the major transport system by means of spray painting. Graffiti problem costs Deutsche Bahn 50 million euro in 2005. They already adopt security measures to address this problem by installing cameras, networked video and application of transparent coating that provides a protection of lacquered and painted surfaces which also facilitates the removal of a broad range of graffiti.