Great debate peoploids!
My penny's worth is that most of us don't know what we will do as each scenario will be unique unto itself. Our ability to quickly suss any situation will be in direct proportion to our actions. However, emotions will be paramount and act as the
"wild card".
At the end of the day, how we handle situations with others in distress will define who we are. I suspect that some who think they'll react in one direction will find themselves doing the exact opposite. Some who do follow their beliefs will reflect heavily after any such event and they will change, whether they realise it or not, such is the power of consciousness.