This was the theme of our latest free customer- and collaborator seminar. We began with participants´ own experiences of work in groups where negative emotions affected collaboration and performance. We then sorted out the concepts of frustration – irritation and anger and described the advantage of recognizing these different expressions of negative emotions through behavour. We shared our view of frustration=energy, and together with the seminar participants we explored how such frustration can be caught up in a work group and converted into functional work energy. We thank those who attended for your contribution to inspiring conversations and reflections!