I recorded this episode of One Thing Today back in late October when I had pretty much withdrawn from the world to spend some time in mourning. I was just beginning my second week of mourning and had had found myself feeling rather guiltily irritable and so decided to go for a walk to see if that would help shift my mood.  After visiting The Big Oak, the walk turns into a rather pleasant mushroom-spotting clamber around the edges of The Caterpillar of Oaks…