om Colella worked for 20 years as an Instrument Electrical Tradesperson for Aroona Alliance in Western Australia, until he was fired in on Sept 20, 2016 for sneaking off to play golf every Wednesday afternoon and hiding his absences from his employer by putting the PDA that he was obliged to carry -- in order to track his movements -- in a mylar potato-chip bag that acted as a Faraday cage and prevented it from receiving GPS signals and other location-identifying beacons and storing or communicating his location for his employer.