Refacing is a form of street art where artists “defile” public property in a way that is not permanent. Examples of this include yarn-bombing, sticker-slapping, and “reverse” graffiti. This trend came about when police began cracking down harder on graffiti artists. By making their art temporary, artists believed it could not be considered vandalism and they would therefore not get in trouble. Unfortunately, many policemen do still consider this type of art vandalism and illegal.