As You were In the Office checking the Camera's You forgot to check pirates Cove where foxy was, You were Too focused on the other animatronics as they were on stage but then you hear a Metal noises tapping against one of the side metal doors..

"Ye forgot t' Check Pirates Cove Mate.."

You looked over and saw... Foxy! As he was leaning against the side door with his arms crossed, He seems to be Gazing at you as you were Surprised to see him...