U.S. Air Force Senior Airman Marcus Hairston, 633rd Civil Engineering Squadron technician, attempts to do a deadlift but steps on a weight plate at the Shellbank Fitness Center on Langley Air Force Base, Va., June 1, 2015. Leaving weights unattended can cause tripping hazards to those using the fitness area. (U.S. Air Force photo by Senior Airman Breonna Veal/Released)