I've heard this same lesson repeated MANY, MANY, MANY times over, not just over safety privilege. If you think you may even MAYBE, POSSIBLY MIGHT be getting "looked at" about something that has happened, ask to be read your rights, and seek counsel. It's in our nature to try to "be helpful" but unfortunately I've seen several people both in the military and civilian world get burned badly by statements they made trying to be "helpful" without counsel present. Unfortunately in today's world, don't ever assume ANYONE has your back.