here's a 'straight' answer to a humourous thread:
I decided to divorce my first wife (been together nearly 10 years; half of which we were married) after she threatened to deprive me of my liberty.
it's a long story but she was a crazy NYC girl who could act like Inspector Clouseau's manservant and attack me at random intervals. I'd use Ju-jitsu to neutralise her advances and tie her up like a pretzel at times, because she could just completely lose it*. Then one day she threatened to report me for spousal abuse - as three times she'd incurred injuries which were all 'on record' all during incidences when she'd attacked me and I'd just defended myself and have me locked away. I went straight down to the cop shop the next day and made a full report to a female detective as I didn't fancy ending up in jail facing false accusations, and within a month filed my own petition and a short time after that went in front of a judge and got our divorce decree.
it helped that she still loved me, and we had an amicable separation (I moved out the house for a week and she took whatever she wanted before I moved back in) but she didn't speak to me for about a year after that.
the post-divorce coitus came at some point thereafter, and we were involved physically again for a little time after this, on and off, as I became in American parlance 'her fuck buddy' in between other girlfriends.
she was a good kid, but it turned out she had a chemical imbalance, which fortunately she has resolved these days. While she was acting crazy it was like living on the edge of a volcano, instead of resting under the proverbial palm tree.
still, I learnt a great deal from that relationship, and despite her violent outbursts, she remains one of the most selfless women I've ever known.
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* since I'm about the same size as Ricky Hatton a few of my girlfriends are bigger than me, and she was one of them by a considerable margin!