The Wrong Kind of Writing on the Wall

The impulse to leave graffiti on walls is as old as... walls. (Right, an odd Portland example.) Recognizing this, the city council in Wadebridge, Cornwall erected their very own graffiti wall. At six-feet tall and 30-feet long, the idea was for the wall to provide a legal outlet for those looking to leave their mark in the world.

Cool idea. But although the wall's grand "opening" was scheduled for October 31st, someone couldn't wait. According to the Daily Mail, the anonymous malefactor snuck past the barriers around the wall and left this message:
Ironically, the wall was built with free materials and labor. According to Sergeant Robin Moorcroft, a further irony is that by trespassing and "vandalizing" the graffiti wall, this is now a crime scene. "It is now going to cost the taxpayer, as we will have to crime it, investigate it and paint over it."

Maybe the phantom sprayer should sneak back and add an "Oops!"