"You didn't invite me to the conception," he said aggressively. "Why should I invite you to the birth?"
But what did I know about being a father? Not much. I made lots of mistakes like spending too much time at work. And I was rarely relaxed enough to spend quality time with my kids, like attending sporting events that they were involved in.
The miracle is, however, that they've turned out brilliantly and suddenly my youngest is 40. I'm at his celebration party. An awesome experience!
"Hey, this is my Dad," he says, introducing me proudly to his friends. What he may not know is that I'm proud to be his Dad and will always wish I could have done better.
My son Adam with his stepmother, my wife Rosemary, April 2008