"I had a session with a teenage patient who had suffered horrible abuse when they were younger. I worked with them individually, and when I pulled out my guitar from its case, the patient became extremely agitated and withdrawn. I had a feeling that my guitar triggered some memories and emotions, and I put the guitar away. Later I found out from a social worker that the patient had been beaten by their stepfather with a guitar and that using my guitar would not be useful in therapy. I learned that it was important to find out those details before starting a new session with a patient."