Thoughts are just thoughts, we have all kinds of them, and they are harmless. It is what we DO with them that makes the difference. Telling someone else about them is an action, this is a DOing, so it no longer is a thought, it is an action. Actions can be harmful. Choosing carefully who to tell can be important. A good T can handle hearing all the different thoughts, because that is their job. A friend, or family member, may not be able to handle it, and may find it threatening. So, thoughts are harmless, actions like telling about those thoughts can be threatening to others, besides a T.