I wouldn't risk my life for anybody else.
I'd try to do something of course, Bon Jovi or not, i'd shout i don't know i'd do something for sure, but i wouldn't lose my life and leave my kids without a mum so save somebody's life, no, i don't think.
Now we're not in this situation, so you can't really tell. I know i'm impulsive and react quickly .... so we don't know, pure reflex you can do something which would be stupid in the end, but as i said it's a pure reflex.