Last night at a party, I met a newly-wed couple. They did the sensible thing and had a registered wedding, and this is apparently what happened:
Before they got their certificate, they had to put up photographs of the wedding up on a board in the Registrar's office.
"Why the photgraphs?" I asked.
"So you guys got married in some other way and also got a registered wedding?"
"No no - it was only a registered wedding."
"But the registrar presided, right?"
"Wait. So you had to prove to the registrar that he married you off?"
Of course, it would have been much better if the building in which they'd got married was one in which photography wasn't allowed but I'm guessing they haven't thought of that one yet.