(Didn't Snopes this one, and am not going to... )
Subject: If the ring fits .
Recently a man in Reno, NV had to go to the hospital to have his wedding ring cut off from his penis after his mistress found the ring in his pants pocket, and got so mad at him she stuck it on him while he was asleep.
Which would be more embarrassing?
Having your mistress find out you're married,
explaining to your wife how your wedding ring got on your penis,
or finding out your penis fits through your wedding ring.