You pretty much described what I as in the process of doing when he moved. You should have been privy to all of the plans that I had hatched to legally dispense of the dog. And yes, I use the term "legally" pretty loosely. I really don't care, because when it comes to choosing between my family and a dog, the dog will always end up dead. And true, the jerk would have most likely tried it again, but "accidents" can come in pairs...
But when all is said and done, when your back is to the wall, survival is #1..