won plaudits for agreeing to allow last Thursday’s Women MPs Of The World celebration to take place in the Commons chamber. In an unprecedented move, women parliamentarians from across the globe were invited to deliver speeches from the Commons benches and Dispatch Box. But one piece of protocol remained inviolate. ‘No one is allowed to sit in the Speaker’s chair,’ one of the events organisers explained to me. ‘That’s reserved for Mr Bercow.’ Women, know your limits.