I was slipping and sliding on a mud trail in Laos. My husband and I, both in our mid-sixties, were living in Thailand for a couple of years on one leg of our ten-year odyssey around the world. In Thailand, like most of Southeast Asia, we had our one-year visa to live in the country but were required to leave every ninety days. We could cross any of the borders, have our passport stamped and return the same day. Most expats did just that. However, we took the opportunity to visit other Asian countries.