If you're so worried about doing the right thing then it shouldn't be a problem to cover the expense after all it's the principle right? I mean we all need to help each other out. Everyone who feels that way should set up a defense fund so you can all do your part in helping out with keeping everyone safe, I mean that way people would not be as reluctant to be involved. You're darn right I'm not willing to pay the price for a stranger. I have a wife and kids that come first and if that's too cold hearted and selfish so be it; and I wouldn't blame anyone for reacting the same way were I or a family member involved. Is it quite possible to end up in a lawsuit after using deadly force where you were not a direct participant before capping a round off? - think so; should it be that way after a shoot is determined to be justifiable? - nope, but that's another discussion. I'll stick with being a good witness.
NOTE: The opinions stated in my posts are made assuming the situation presented in the original post.
I know who I can't trust to help me out if I get into a pickle