I agree. Sometimes you can be a very good parent and have an aberration for a child. It happens. Some children have a personality that cannot be controlled. It does not necessarily mean you are a bad parent.
I was that way. I still have a bit of it, and it's a reason why I'm not a democrat. I don't do what I'm told. :)
Luckily I never knocked up a lady. If I did, I'd probably have been both married and divorced by now knowing how I acted in my 20's.