As Guido revealed in his Sun column yesterday, Maggie’s funeral played host to a classic awkward Ed Miliband moment. Dropped off some walk from St Paul’s Cathedral, Guido hears Ed was caught short and ended up popping into the plush marbled reception of a nearby bank. Given Labour’s banker bashing, the investment bankers inside would hardly be ecstatic about his impromptu visit. Friends of the Labour leader insist he merely wanted a mirror to ‘straighten his tie’. All credit to Ed for being one of the few people in the City to walk through Goldman Sachs’ front door and leave having only spent a penny…