Body double for emergency/impromptu/unavoidably public appearances (always kept brief and distant), prefabbed footage using pre-recorded and/or gs/tech similar to this: https://www.youtube.com/watch?v=ohmajJTcpNk
Ever wonder why John Podesta came awkwardly to the stage on election night in lieu of an "HRC" concession speech? Does "she was too drunk/angry" really cut it for you?