We have all been in or heard of situations where some one risks themselves to assist/save another, or not !! in the case of the community support officers who would not go in the water ,having not been trained to do so. But yesterday an event took place which got me to thinking, do we have a built in instinct to put ourselves in danger to help some one else? A relative of my wife is visiting , two girls and junior a boy aged 2, junior managed to escape from a decking and wander down to a pond on the caravan park, concrete structure ,sloping sides into about 3- 4 feet of smelly water, sods law he went in and under, before any adult could react, Sarah aged 8 went in and under after him and managed to somehow get him to the surface, he was a goner. Happy ending both pretty shook up and very smelly Once she had a hot shower and loadsa love , Sarah calmed down , my wife (still shaking) asked her if she had been frightened or afraid to jump in , Sarah said " i dont remember, i just did it " Where does that come from ??