Staff Sgt. Aaron Rustici, 36th Security Forces Squadron military working dog handler, flees from Arno, 36th SFS military working dog, as he bites a hard sleeve during advanced decoy training Dec. 16, 2014, at Andersen Air Force Base, Guam. Advanced decoy training gives the trainers an opportunity to become more comfortable in high-threat situations and allows the dogs to become more confident. (U.S. Air Force photo by Senior Airman Amanda Morris/Released)