Harold was fascinated about how babies were made. Not the actual sex act.
Meaning how easy and simple it was and how any two jerks could do it.
He saw people who had made children and he knew they couldn't change the battery in a car or build a fence or would take 40 minutes to untangle a set of Christmas lights.
He knew it was easier to make a baby than it was to make a cake.

You know how it is when you go to be the subject of a psychology experiment and nobody else shows up and you think maybe that's part of the experiment? I'm like that all the time.

What would a chair look like if your knees bent the other way?