The way that the ex and her wealthy boyfriend (and his lawyers) arranged things, I could either seek employment out-of-state or risk arrest on a series of trumped-up charges ranging from simple assault to attempted murder. They had even lined up (e.g., paid for) a string of "witnesses" to corroborate whatever story my ex-wife came up with.
So I joined the military. Their investigations cleared me of any potential charge that the ex had threatened to bring against me, and even gave me a security clearance that allowed me access to their records! Of course, I never abused this privilege ...
Well, maybe once ... or twice ...
The point is, I turned the tables against them, got them off my back, and even let them know every now and then that "someone" was keeping an eye on them.
My kids turned out fine, and were even surprised at how much I knew about what their mom and her husband were doing with the various "business deals" they were running.