When you talk with somebody proven dishonest, you expect dishonesty so you are on your toes. When you talk with somebody with no dirt and 'honest' the question

When you talk with somebody proven dishonest, you expect dishonesty so you are on your toes. When you talk with somebody with no dirt and 'honest' the question still remains if they are honest or you are being played. He could be referring to something in that direction.