Accident scene antics

[Iggypoppin']

I was a witness to a pretty bad crash two years ago whilst passengering in a friends car with his missus and my missus. The car in question that caused the crash shot across our lane(almost got us) and hit a car in another lane going the other way. I told my mate to perform a U turn so I could administer first aid and also told his gf to call an ambulance. We where at the crash scene within 1minute of it happening and I jumped out the car and assessed which party seemed to be in more trouble. The vehicle at fault was being driven by an Indian couple who where disorientated but physically uninjured. I let my missus look after them. The car they struck was being driven by an elderly couple who where injured.
The drivers door opened as I got there and I could see the old man was hurt, so I calmly asked him to sit very still and asked him to recite the approx time and the days date. This was to check for brain injuries, of which he didn't seem to have any. I then asked if he or his wife had a medical condition, and he told me he had a pacemaker and his wife a replacement hip. I told my gf to relay this info to the ambulance despatch personell so they could be forewarned.
The old man had a small cut above his eye, which was bleeding into his eye and mouth. I gently wiped the blood away with a tissue and repeated to them that they had been involved in a crash and that they where ok but needed to remain calm and that help was on it's way. Once the ambos got there (8 mins) I stepped back and quickly told the officer everything that had occurred and what was wrong with the old couple. I offered to perform traffic control as I am a qualified traffic Marshall and with a vest and torch I am legally aloud to do so. He gave me a vest and his maglight and I directed traffic for a few minutes until a police car arrived and he took over. Once the ambulance had loaded it's passengers the ambo officer thanked me for being calm, controlling the situation and not getting in the way. Likewise the police officer told me it was refreshing to see someone so young being so switched on at a crash scene and actually helping out.
Once everything was cleared up we left and a few weeks later I got a thankyou note from the old couple who where very pleased I had been there and wishes to invite me over for a thankyou lunch sometime. I was pretty flattered and accepted and they where wonderful folk. We could have kept driving but in that situation I think I did the right thing. You can help at a crash scene but you need to know the fine line between help and hindrance!