I believe that I have had a pretty good run when it comes to vandalism. The house was empty for about six months before I really started working on the site. During that time the house was broken into once and the place was smashed up a bit. A glass pane broken, some walls and cupboards damaged, a door broken... I reported it to the police and spoke to my neighbours. I also left a note for any unwelcomed guests, suggesting that they find something else to do, and that the property was being watched.
8th December 2009 - I managed to clean the whole lot off! Using lacquer remover initially (which was a bit harsh) and later methylated spirits. It took about 2 hours. Looks almost as good as new.
10th December 2009 - The incident made it into the local newspaper.