When it comes to medical personnel seniority, anyone remember the case of the footballer, Fabrice Muamba? He had the medical squads of both teams out helping him, then a senior cardiac surgeon in the crowd put in an appearance too. He was interviewed after the event and said that by the time he got there, he could see that the medical people at work were already doing pretty much what he would have done at that point so he just let them know he was there in case things got worse and let them get on with it, on the basis that there was more risk in him disturbing things by joining in.