Again, they are adults, it's up to them to take the initiative. Why should I risk my life and a future life with my family.. the happiness of my husband and son.. because someone didn't take the initiative to defend themselves?
Like I said before, if it was also someone who had it coming and I lost my life defending them, how exactly is my husband supposed to explain to his son that his Mommy isn't around anymore because she defended someone who was really a bad guy?
Nope.. not a risk I'm remotely willing to take.
I will certainly call the authorities and be a good witness... in some situations I MAY lay down a cloud of pepper spray on everyone involved but I would be EXTREMELY EXTREMELY hesitant to use my firearm in intervene on behalf of battling adults who are strangers to me.