Kev, I too have done things for random people whom I will never see again. It's true that in no apparent way would it have benefited me, but I know that if I examine my thinking at that moment I made the choice to do so I did it because I felt it was the right thing to do, therefore making me a "better person" or just living up to image I might have for myslef as a nice guy. Can you really say your situation was different?