how about if the husband/wife was claiming that he/she was not married, so the opposite spouse whipped out the marriage certificate to prove that they did get married.
I could see that situation coming up if one of them was dead, or even gravely ill, and the other was being challenged by other relatives... A marriage certificate would make you the official next-of-kin, and they have some rights.
Or maybe a wife had conflicting documents, like a passport and a driver's license, one with the maiden name, one with the married name -- it's not easy to change the name on your passport.
PJ
who hopes she never has to produce her marriage license considering she hasn't seen it in about eleven years...