By J. Gerald Suarez, Special to the Washington Post I had finished a series of lectures in Spain and was eager to head back to the United States to catch up on work. I should’ve taken a few days off for sightseeing, but this overpowering need to remain busy prevented me from indulging in some downtime and the chance to enjoy Spain. I arrived at the Asturias regional airport, rushing from curbside to cafeteria to grab a cup of coffee and keep heading for the terminal. “One large coffee to go, please,” I ordered. Greatly astonished, the waiter replied, “To go where, sir?” “To the terminal!” He pointed to it and said, “What’s the hurry?