Sometimes my plot lines are so convoluted, I get calls from friends at 3 am saying; you SOB, you'll never pull this one off.
She had the kids during the day and I would have them at night. That way they were never alone. I would put the kids to bed, and then I had nothing to do and nobody to talk to, so I would write.
When I first started writing, I was in advertising at the time, I was doing most of my writing on weekends. I had studied most of the other series heroes and I figured it would be fun for mine to be different and put him in and around water. So I dreamed up Dirk Pitt.