The only thing I'll ever say in my Dad's defense is that he never really had much of a chance at being a decent human being. His father was a chronic alcoholic, and his mother an absolutely out of her mind drug abuser. He was just broken. That didn't, unfortunately, prevent him from being one mean motor-scooter. Unfortunately, my step-dad was arguably worse.
You have to take all that with a grain of salt though - I am an unforgiving person. It is a character flaw. Maybe Paula can be a better person than I've always been. /shrug