The Shadow is only dangerous when other structures are not available to positively direct its behavior. If one is not in contact at all with his or her Shadow, there is danger that it may become frustrated and take over the personality because the rest of the person is not considering the Shadow’s input. The Shadow can be dangerous in this circumstance because reasonable limits are not being put upon it by other subconscious entities. When you’ve had it up to your ears in frustration, the Shadow will remove you from the situation by whatever means are available. This accounts for the situations where you did something in your own best interest in such a dramatic way that later you can hardly believe you did it. The Shadow is protective in focusing on self-survival and the person’s own best self-interests.
There is so much more in the book at http://www.drstevenfox.com about the shadow which is often key to change.