‘Well that’s obviously an azalea. Give me a harder one.’ I’m on one of my daily rehab walks around our garden on Bodmin Moor with my father, Robin Hanbury-Tenison. He’s not actually with me, he’s over 20 miles away at Derriford Hospital where he has been battling coronavirus for the last six weeks, but since he was moved out of intensive care and into a rehabilitation ward he’s been given his telephone back and we can speak every day by video call.