Let me explain. Mr Britton spent the first 14 years of his career as a bond salesman, with Merrill Lynch and Drexel Lambert.
Then in 1985 he joined the Securities and Investments Board to work on capital markets supervision.
He has now spent nearly 14 years in that role, latterly under the banner of the Financial Services Authority (FSA).
Now Mr Britton is joining the International Securities Market Association (Isma) as head of market supervision for a new screen-based bond dealing system called COREDEAL.
It means he will have to go another three stops on the Docklands Light Railway each day, from the headquarters of the FSA in Canary Wharf to COREDEAL's base at Crossharbour on the Isle of Dogs.