This year was the 15th in succession that workers from the Pen Green nursery had taken a group of children aged three and four years, without their parents, to Dodford Farm near Birmingham. They went for three days and two nights during the May Bank Holiday week. We had heard about the farm during the early 1990s from a group of Birmingham teachers, who regularly took their five-year-olds for a week. The farm, which was conceived and funded by the Cadbury...