That ended with me finally explaining to him how the way he and my mother treated me as a child, with undiagnosed (and really not even conceptually understood at the time) ADHD caused me lasting trauma that persists to this day. I’m a 45 year old man, and I cried.
Been there, had that talk. Thankfully, my parents are mature, capable of introspection and have worked on becoming better people throughout their lives. So it went quite well, although I will say it doesn’t make much of a difference with regard to the past. That’s for me to sort out now.