I really think chance has something to do with it. I had two no way parents (don't know why I thought that was a good idea in retrospect) in my first generation and they had triplets on the first try. After that no matter what, they just wouldn't have another kid.
Ha! If I were a No Way peep and you saddled me with 3 at once I'd refuse too!
Yes, me too. I wonder where they (the grandparents) go?
Isola, I think.