My son had come down for his first vacation after leaving home for college. I assumed that he would want to relax, laze around and catch up on all the lost sleep. But to my surprise he had very different plans. I watched open mouthed as he got up at 5.30 am and left for work at an unearthly 6.30 am every morning including Saturdays. He told me about the villages he visited and the data that his...