Would you be willing to go to jail for...

[oneSLOWex]

I would just call the cops whenever you hear them arguing and not touch him UNLESS I actually see him doing it with my own eyes.

[40th GT]

I would just call the cops whenever you hear them arguing and not touch him UNLESS I actually see him doing it with my own eyes.

I still wouldn't do anything even if I saw the abuse going on only because of legal matters. Touching him would probably make me just as guilty and it's not worth going to jail for - it's not my war.
I would keep calling the cops as said above. Our tax dollars pay for the police force so why not use it to our advantage. And I would agree to testify as the witness if it'll help the victim in any way.