The work that is done with children and young people by the practitioners of health, education or social care forms part of their experience of growing up, and can have a profound impact on their future outcomes. Children may find themselves ‘impotent at the hands of powerful others’, particularly where their behaviour causes concern. This paper reports on a key theme from the author's doctoral research, demonstrating the ways that the emotion-laden interactions between practitioners in multi-agency children's services, children and parents, affected the diagnosis, treatment, communication and outcomes for children's well-being, as defined within Every Child Matters. Exploring the emotion within interactions permits a different perspective on ‘need’, and finally, the paper argues for a more careful and emotionally reflective practice from those who work with children