Because its a class, and not a client, I would personally take the mental break and enjoy the relief until/if the material triggers you. For myself, I found I could handle the educational aspects of the dv stuff because it was removed from the emotion. I was able to keep my "professional" hat on during the trainings and classes. The part that tripped me up was the direct client work. There was more emotional investment in my actual clients. It was more than just the theoretical stuff. There was a face, a name, a body attached to what I was hearing. one client also very much reminded me of my mom And it became more difficult to separate out my experience from her's.

One thing I did find somewhat helpful was simply talking about a stressful event in detail with t's helped. It did the same thing as prolonged exposure therapy for trauma, only less intense and less structured. Because I switched therapists so much, I needed to rehash the event a number of times. While it's still stressful, I'm finding it's not as triggering as the parts of that story that were not recounted to each therapist... if you are still worried about being triggered, maybe you and t could simply talk about the event and emotions around it more. I know it sounds like a broken record, but it has merits for reframing the trauma and taking some of the impact away from it...