I don't think it's possible to evaluate the mindset of the individual attempting the rescue from the side line. All rational thought may have fled his mind and

I don't think it's possible to evaluate the mindset of the individual attempting the rescue from the side line. All rational thought may have fled his mind and he was acting on pure impulse. The only reason I speculate that might be the case was when I was held at gunpoint (long story), my mind immediately switched to a "detached observer" point of view. No fear or heroism, just observation of events.