Kids loved the Rolls, mainly because they could jump on the running boards. We anticipated this, and strengthened them before we left home. We also put steel catches inside the doors, so when they hung on to the door-handles the doors wouldn’t fly open. The background is a rock mine. Rocks in Bangladesh are rare as diamonds in Britain. 20,000 men women and children work here in the dry season. The pay is good. The mine, at the foot of the steep Megalayan Hills by the border with India, is under water during the monsoons. When the water recedes there is a fresh harvest of Indian rocks to build Bangladeshi roads: the ultimate in renewable resources.