This made me laugh. 'Welcome to England' tagged as you enter England from the Duchy via the Cremyll ferry at Plymouth. Taken from a thread on the Cornwall 24 forum.
This is perfectly acceptable direct action considering the lies emanating from the establishment concerning the Cornish question. All power to the spray-can-holding-hands of those that did it. Spread your funny and creative tags across Kernow.
A Cornish Banksy in the making perhaps? They should certainly put together a website or blog of their work in Cornwall.