Because you end up with a ring on your finger.
It's a never ending story.
Cloning.
Take your finger out of your ear and listen to me!" I saw this in a Highlights magazine when I was a kid.
She puts two fingers in her mouth and then shouts "Max!".
If you like dialogue, theres a whole lot of Tolkein.
Because they both have rings.
Well, all marriages are legal in North Korea, but no one has them because there's no rice to throw.
Screw it. EDIT: has a better answer