This is brilliant, it solves the whole vandalism problem and it would put Mrs Chapman's pressure washer to good use in a creative sense.
Is cleaning sidewalks and walls a crime ?
A growing number of street artists around the world are now changing their way of performing graffiti into an innovative cleaning practice.
This new trend known as Reverse Graffiti has now even reached the eyes of marketing agencies:
On April 15, 2008, Green Works (a brand of natural cleaning products) launched a creative street marketing campaign: The brand gathered Paul "Moose" Curtis, an English reverse graffiti artist and a famous documentary filmmaker, to create an environmentally friendly work of art and a film about a philosophy of clean.