On Sunday David Miliband admitted how bad was the hurt that his brother inflicted upon him. In doing so he triggered an outburst of sympathy online that ended up with him trending globally on Twitter. Today at PMQs, in reply to Cameron’s taunts, Ed Miliband dismissed his knifing of his brother by asking whether Dave was going to bring up his cousin next. Clearly the line is being held that Ed has done nothing wrong and everything is hunky dory – but is it really?

David and Ed, with their respective entourages, crossed each other’s paths yesterday afternoon between Portcullis House and the Norman Shaw building. Guido’s co-conspirator reports that they walked literally within a few metres of each other in opposite directions and never mind not exchanging words, they didn’t even nod, smile or acknowledge each others presence. “David, I love you so much as a brother…”