His pleas are unconvincing . He heard the door open and close again while he was just around the corner . He was the last one there , ultimately having worn the most after the midnight battle on the Dauntless . Layers of clothes under that brocade , a wig that had kept him in makeup for hours , it was long past the time that any of his coworkers should have been there . 
Question: Why was he the last one there ?
He needed to change out of his costume .