Caught in the Act at My Lecture Hall Desk

I've been in this relationship for over a decade now. My partner and I have always had an adventurous side to our intimacy, but last week, we took it to a whole new level when we decided to spice things up during one of my office hours. She came into the lecture hall early and we set everything up under the pretense of grading papers on my desk. As students trickled in and I began my office hour from behind my desk, she started teasing me with light touches and whispers. It was exhilarating and terrifying at the same time, knowing that this could potentially be caught by anyone walking in. Then, a student burst through the door needing help with an assignment just as we were about to get into it. I had never felt so embarrassed or turned on before. We ended up continuing later that day behind closed doors and it was unlike anything else we've done together. It made me question how boundaries can blend when you're both willing, open adults. So here's my question: Have any of you ever explored something similar with a partner in an unexpected or public place? How did you handle the thrill and risk involved?