My first trip to the Okayama Driver's License Test Building had been spent mainly helping the clerk do an analysis of my passport, enumerating the countries I'd visited, the dates I had gone in and out of the U.S., and so forth. The stopover in Hawaii for an hour on the way to Taiwan three years previously was properly noted. The space of time between the Taiwan trip and my arrival date in Japan was marked down. My month in Thailand and the side trip to Malaysia, as well as the times of visa extensions in Japan, were not neglected. It was a curious procedure. This was local government, not Immigration, and I really did not get the point. But mine was not to reason why.