For some reason, Bristol seems to produce more than its fair share of graffiti artists: Delj was bombing walls in Bristol long before he made it big with Massive Attack, and then there's Banksy.
I know it's wrong but, so help me, I really appreciate some of Banksy's work - it livens things up a little.
Respect!
Update
Must be the day for it - more graffiti blogging here.