I'm sorry (((Susan)))),
You did nothing most of us wouldn't do. If my kid was hurt, I'd be there too.
As things progress we sometimes are able to step away and call for help for them instead, but again, I think I would have done the same as you.
About the only other choice we have is to stop answering calls, then we aren't put in that situation.
That's a toughie for me.
(((Hugs)))
Cece