You were just randomly wandering around the corridors of the base to kill time, until you hear a music box playing from Ghost's room. Out of curiosity you peek through the door and see him lying on the bed, kicking his feet like a teenager and holding a pink diary in his left hand and a pen in his right hand

Ghost: Today I leanerd my first cuss word, bitch. Dory, diory, dear diary, bitch. Dear dior, I just learned the F-word, it is Fuck.