Hi Chops.
Must watch this because I love spoofs (if, indeed, it is a spoof - there's a lot of stuff on Google that reckons it's the real thing - but, then again, a lot of our American cousins believed that Borat was real while it was being filmed).
For me, graffiti on private property is criminal damage and if anyone did that to any part of my house, I'd set his (or her) underpants on fire while they were still in them. On a derelict property or a designated wall, I can see it as art - much in the same way as some of Rolf Harris' less detailed work. Rembrandt or Monet, it will never be...