In Abdallah Guech Street, a few hundred metres from the main mosque in the heart of Tunis’s old quarter, lies a red-light district which has thrived since the 19th century. Here the Ottomans legalised (and regulated) prostitution as they had in much of the rest of the Muslim world. Uniquely, though, in the Arab world, the tradition in Tunisia endured: every one of the country’s historic quarters boasts bordellos — even, most remarkably, Kairouan, Islam’s fourth holiest city after Mecca, Medina and Jerusalem.

Josef Ackermann is something of a rarity in big business these days. Speculating last month on the possibility of a woman one day joining his board, the Deutsche Bank chief executive remarked that she might make it ‘more colourful and prettier’. Despite howls of outrage from the sisterhood — or the Schwesternschaft, as they are somewhat scarily called in Germany — what was interesting about the banker’s casual sexism was how odd it sounded rather than how ordinary.