[alias_neo]

Interesting reading, thanks for that. I have learned something. I was intentionally liberal with my use of the word "believe", because it seems difficult (to me) to prove the relationship without that piece of paper. I imagine (note I say imagine, this is based on no evidence or research),you could challenge it successfully in a court of law though, if required, for some reason?

The myth aside, I don't think you have "no" rights, the first link says "fewer". It's really hard to prove something without an "official" document though so I understand how it could be more complicated.