I was lucky that a friend of mine worked with a govt. lawyer;
My ex had been sleeping with her boss (bank boss.. go figure), and I finally caught them.
I was willing to forgive her, but she wanted to go where the money was (her boss).
My MIL was threatening to drain every penny from my life, until my friend talked to her and threatened to publicly publish all of the gory details of what caused the divorce in the first place, backed by his lawyer friends (and copies of ex’s e-love-mails back and forth with her boss)...
MIL never bothered me again, and all I lost was my life with my ex.
(BTW, FIL was on my side and called his daughter a filthy slut, right in front of me)
Wow, in a depressing thread we have a winner for Most Fulfilling Comment!
That had to have felt good, all things considered.