Simon is active in senior levels at the College of Healthcare Chaplains and the UK Board of Healthcare Chaplains and offers his views about the dimension of professionalism in chaplaincy. We look at role boundaries with other professions and wonder about the essential qualities of the role, how to be ‘deeply rooted’ and how this relates to endorsement and inclusion. We explore how to get at the ‘slippery fish’ in conversations, who to prioritise in our engagements and how asking about faith or belief can set us on too narrow a path.