As a veterinary student approaches the end of training, and then starts that first job in practice, there is a sense not only of achievement and fulfilment but also of terror and self-doubt. Few of us will ever again be as knowledgeable about all aspects of the care, diseases and treatment of horses, cows, sheep, pigs, cats and dogs as we were at the time of graduation. Unfortunately, there is a seventh species to contend with: the clients.