cindy2:
You asked if the day were to be lived over, what should have happened instead. Given his limited social skill set and given my immaturity at the time, I think the outcome was inevitable. If he didn't have a chip on his shoulder--which made him think I was just one more person--among a long list of people--who disliked him, he might have been able to look at this more clearly and try to extricate himself from the immediate crisis without threatening to tear the family apart. Now, even paranoid people may have real enemies. And there is no question that that relative of my mother had it in for him and was doing everything he could to drive a wedge between me and my father, which would have made a successful outcome problematic even if my father had it all together.
It seems to me that your mother bore some responsibility too, if a relative of hers was deliberately undercutting your father's parental authority over you, yet she apparently didn't confront him over his destructive meddling within her nuclear family.
If the situation were a Library fantasy, your mother likely would've thrashed her relative's bare behind, in front of yourself and your father, after you'd been paternally strapped. In the real world, she could have at least informed the guy, likewise in front of you and your father, that he was expected to apologize for interfering with her immediate family's child-rearing matters, agree to avoid doing so again and reverse his assertion about your father having no authority over you. (If that relative had refused your mother's demands, arguably all contact with him--by yourself and her--should've been withdrawn, at least as much as possible.)
In this situation, there was obviously plenty of blame to go around. Given your father's lack of social-interaction ability, perhaps your mother should have continued to be your primary disciplinarian during your teenage years, but she'd seemingly stopped performing that role, even though you clearly still needed more externally-imposed structure in your life.
Of course, dealing with a stubborn teenager can be quite challenging--possibly your mother was afraid of ruining her maternal relationship with you by imposing discipline, so she tried being empathetic and "reasonable" instead.
It's certainly true that, contrary to what occurs in much of spanking-oriented literature, many teenagers would (and do) feel angry and resentful at being parentally punished (corporally or otherwise), at least while it's happening to them, whether they truly deserve it or not... --C.K.