In fact, yesterday I found this wonderful quote that speaks wisely to this very concern: "Sin aims always at the utmost; every time it rises up to tempt or entice, if it has its own way it will go out to the utmost sin in that kind. Every unclean thought or glance would be adultery if it could, every thought of unbelief would be atheism if allowed to develop. Every rise of lust, if it has its way reaches the height of villainy; it is like the grave that is never satisfied. The deceitfulness of sin is seen in that it is modest in its first proposals but when it prevails it hardens mens' hearts, and brings them to ruin."

John Owen

Also, Robert Murray M'Cheyenne wrote this upon examination of himself.

So if a pastor or someone speaks to issues of my remaining sin, I am thankful not resentful for the opportunity to repent of it and to do what God requires of me. I do agree with you, that guilt manipulation is not appropriate and I don't think it satisfies the teaching found in Ephesians 4:12.

The Chestnut Mare