 Mountbatten had been warned in his briefing papers that Jinnah would be his " toughest customer " who had proved a chronic nuisance because " no one in this country [ India ] had so far gotten into Jinnah 's mind " . The men met over six days beginning on 5 April . The sessions began lightly when Jinnah , photographed between Louis and Edwina Mountbatten , quipped " A rose between two thorns " which the Viceroy took , perhaps gratuitously , as evidence that the Muslim leader had pre @-@ planned his joke but had expected the <unk> to stand in the middle . Mountbatten was not favourably impressed with Jinnah , repeatedly expressing frustration to his staff about Jinnah 's insistence on Pakistan in the face of all argument . 
