Maybe my stitch is at the other end of the spectrum in a way... your W went quiet about it, I nagged :-P I told him so many times how it was affecting me, that it felt like he was dumping negative stuff on me. But his view was that I was wrong for looking at it that way, what's wrong with venting anyway. So no matter how many times I told him that he's creating negative atmosphere at home and I hated it, he'd just defend himself and we'd argue. It felt like he was putting a lid on it.
If someone sees something as perfectly normal and ok to do, they won't see it otherwise unless they want to... if you know what I mean?
Just one thought... Does your dad sigh or have negative views in general? When I talked to a counselor(not DB coach), she told me that fathers are "a window to the world" for their kids. If he sighs about it constantly, then the kids will think there is not much out there for them and would have similar views. My H's dad used to do this.
I'm not religious but I decided to leave it to the unknown, things happen for a reason and there must be good things in store for me... anything can be turned into opportunities depending on how you pick yourself up. :-)
