I recorded this episode of One Thing Today back in late October when I had pretty much withdrawn from the world to spend some time in mourning.I was just beginning my second week of mourning and had had found myself feeling rather guiltily irritable and so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…