Recorded at the recent Evidence Based Perioperative Medicine (EBPOM) USA conference this piece is the question and answer session which followed Mike Grocott's talk; "Wrong surgery or wrong patient?". Various questions from the audience follow after a short conversation between Mike and our Editor in Chief Monty Mythen. Presented by Monty Mythen with his guest Mike Grocott, Professor of Anaesthesia and Critical Care Medicine, University of Southampton.