Wow Pupper, that's a first for you! You usually don't like going on the offensive like that!
And yes I agree, the confrontation has to be very aggressive or it's a waste of time ... showing up and trying to negotiate or ask OM to cooperate isn't going to fly...
FIL and any other in laws have to show up and demand that he do so in order for the OM to sense there will be serious consequences if he ignores the confrontation....
That's the problem I think pup... if a person confronts gently the implicit message there is that there will be gentle consequences... if you confront aggressively, the implied message is that the consequences are severe...