Quote Originally Posted by tomandtish View Post
We had to design software at work (CPS) to track relationships (bio, married, adopted) between various people. The developers wondered why we started laughing when they said there didn't need to be more than one bio relationship between any two given people.
I can see only having the closest bio relationship as being reasonable, but I am fairly certain you would want to track all the relationships.

My wife MIGHT be a 5th cousin.
My mother's grandparents were 3rd cousins. The story is that they didn't notice until after they had multiple children together.