Penang, Malaysia When Eric, the manager of the Cheong Fatt Tze mansion guesthouse in Penang, invited me to go with him to the Penang fish salon, I didn't hesitate a beat. We drove there--the salon is located, of course, in a shopping mall--parked in the lot, and headed to the salon. It looked a lot like a sushi bar inside, with raised wooden decks and smooth pebble paths.I'd heard about these pedicures by "doctor fish", (their biological name is garrarufa) that feast on dead human skin, leaving your toes and soles clean and soft. (The technique has allegedly has been used...