We were blessed here in Cheltenham with a visit from famous graffiti artist Banksie about a year ago when he painted this blank wall on the end of a terrace of houses. I thought it was a good joke given that Cheltenham listens to the world through GCHQ, and it brightened up the house facade.

A year on and this is the result. Nothing very funny about this mess. Wrangles about who owns it and who can profit from it have made it into this, together with a visit from someone with more paint and a lot less talent than Mr Banksie. It would be good if someone had the bright idea of just repainting the house in its original colour and leaving well alone.

I wonder if it had been done by anyone other than a famous artist anyone would have bothered.