Let me tell you a story. Several years ago, I was painting the bathroom of a house in Bristol. The window was open and it was a pleasant sort of day and people were wandering past. Around about four o’clock I heard a couple of sets of feet come down the hill and then stop. “Look, cherries!” said one voice (female, mid to late teens). “No, I don’t think they are. They can’t be.” Said the other, doubtfully (ditto). “Well, they look like cherries. Let’s try them!” “No, they are probably berries. Completely different. Some of them are not red, they are blackish. They are probably poisonous.” “Oh. Yes, I suppose so.” (disappointed) The feet moved on. I looked out of the bathroom window at the large and heavily laden cherry tree leaning over the wall of the garden opposite and wondered what the world was coming to. Red Sky in the Morning, Shepherds Warning ((c) N Slade) I am actually still wondering. When my grandfather was a child, he and his brothers (and a dog) ...