Actually, anything you say or write can be used against you. Keep this in mind when dealing with patients, employers, adverse parties and the Board. What may seem like a simple phone call may be tape recorded and used against you later. Most people, including businesses and the Board, have caller ID, so those anonymous calls are not so anonymous. A letter or note or email to a "friend" may haunt you later. Some of the most damaging information used against a nurse came from "friends."
Online chat rooms, myspace accounts, forums, etc. are other places where you must be careful. For example, I have seen posts by nurses who were bragging about substance abuse or venting about inappropriate care of patients online. I have figured out who certain nurses are by reading their posts and if I can figure it out, the Board or opposing attorneys may also be able to determine identities. I have heard the Board chastise a nurse for inappropriate and inaccurate comments made online.