...As it happened, their doings and sayings ranged from the semi-farcical to the meaningless. According to a leading South African news website, Indian Prime Minister Narendra Modi refused to leave his aircraft on arrival in South Africa because the host, President Cyril Ramaphosa, wasn't at the airport to welcome him. China's Xi Jinping inexplicably failed to deliver a scheduled speech at an opening event where the other leaders spoke, including Russian President Vladimir Putin on video link....