Never! Jewelry is for women and peacocks.
Lots of women come up to me when I'm out with the guys. It's fun to string them along for a little bit before I tell them I'm married and have kids. Of course there are those women who'll try even harder once they know you've got a wife... a lot easy sluts in the world.
I have buddies pretend they're married, wear a ring, the whole nine yards for the extra poon... too easy.