Guards will be guards. They are always posted at spots where large numbers of usually well-behaved people congregate, and most of the time they have nothing to do. So they take an occasional break to smoke. The guard from India and the one from China have similar furtive looks on their faces, when they realize that someone has seen them not looking their fearsome best. In a decade there will be guards who do not smoke. I wonder what they will do when they realize that the tourists do not need looking after.