Not sure how it would apply to this situation, but there are “Good Samaritan Laws” which protect people from frivalous lawsuites when they are only trying to help. They explain these when you go through CPR – if you do your best and something (god forbid) were to happen that was negative (broken ribs, death, etc) that you cannot be sued.
The world is not yet a lost cause… keep the faith, especially this time of year!