Regular readers will know all about the utilitarian paradise that is the staff canteen at SJ Berwin, as well as the firm’s recent move to flash new digs on the muddy banks of the Thames, where an increasing share of the City’s most expensive suits – sorry, finest minds – have recently been gathering.

Indeed, last week The Diary received an anonymous e-mail, titled ‘Reasons not to visit SJ Berwin’s new office’, drawing attention to the City firm’s latest neighbours – the shadowy Cybus Corporation, whose website appears to show the company’s offices located pretty much next door.