Students had just participated in an experiential learning exercise where they played dodgeball using marshmallows, but the unique context of the game introduced ethical dilemmas that integrated ethics education into a technical education classroom setting. Research shows that "Engineering curriculum and activities at the K-12 level should be designed to expose students to [ethical considerations inherent in the practice of engineering], and as a result students should be aware of the importance of these issues in the field of engineering" (Moore, Glancy, Tank, Kersten, Smith, & Stohlmann 2014). How do STEM teachers teach students to think about ethical issues and their role in their future careers? This article describes how this whole-class simulation provided a forum for students to experience simulated ethical challenges while exploring principles foundational to STEM careers.