What would you do?

Apparently you didn't read the whole original post.
There are laws against spousal abuse especially from a
bitter old man that hates the world and his life.
Tuning is what ever you think is appropriate to the situation
to make clear your point.
If your not able to handle an old abusive knucklehead, I pity you.
I can ream your *** as good as any drill sargent if needed.

You guys come off as a bunch of do-gooders that would stand by and watch instead of getting involved.

I did read the whole OP.Where I come from tuning someone up means beating the **** out of them.I'm just saying no matter what kind of *** he is you do not physically assault an 88 year old man. Never once in the OP did I see where he was physically abusive to her. As for standing by and being a do gooder and not getting involved where did I say not to get involved.Just said there are better ways than tuning up an 88 year old man.Of course we do have have different ideas about what tuning up someone means.I can handle an old abusive knucklehead.Been there... done that .....but that's a long story I'd just as soon keep buried with him.