Vandalism is frowned upon and for good reason - it's a criminal activity that often results in damage to someone else's property. These acts of vandalism? although still technically classed the same they're actually pretty funny thanks to the perpetrator brilliant sense of humour.
Whilst some of these acts of vandalism are clearly irreversible (the posters added to existing signs) others are a little more permanent. When they make their surroundings a funnier and more interesting place to be however, are they still really acts of vandalism? or do they become works of art. Here are 25 clever acts of vandalism that are actually hilarious.