When we were on a flight from LHR to LAX, a young child passed out waiting for the bathroom. A call went out for medical personnel to please respond and bring your medical license. My husband went and so did 4 other people. It took my husband a minute to realize that the other "professionals" did not know what they were doing. The flight attendants were listening to them though. My husband took his medical license, put it in front of the group around the child and said that if anyone else had one, fine, otherwise lay the child flat and he needed to take over. No one else had a medical license. Is that scary or what? We never did find out what in the world the rest of them thought when they got up to respond. When the co-pilot came back to tell my husband that they were diverting to Salt Lake, my husband told them he was double board ceritifed in emergency medicine and pediatric emergency medicine and that no need to divert, it was okay to go on and just have the paramedics meet us at the airport. The co-pilot saluted him, smiled and said good enough for him and on we went to LA. I did worry for about a year that someone would sue just because they could try. Never, never would anyone charge. We didn't even know the passengers name.