For all those looking for a bit of nonsense to while away their Friday, look no further than Twitter, where @thegherkin and @canary_wharf are having a towering argument. The Wharf says: "Careful sunshine. Do your research before you start getting architectural on me. Mr Pelli is one of the greats. A legend no less." Gherkin says: "Arrogant and trouble making as always I see... you can take the boy out of (or rename parts of) Essex but you can't..." etc. etc.