Janeane Garefalo was recently surprised to learn she is married- for 20 years in fact. In the early 90's her and Rob Cohen, producer of The Big Bang Theory, were drunk together in Las Vegas. So inebriated were the two that they went through a drive-through chapel, pronounced man and wife, only to forget about for... well, 20 years.
It was only discovered when Cohen's lawyer was going through legal records preceding his second marriage. Wouldn't that be one interesting phone call? I wonder how the lawyer broke it to him.
"Well sir, unless you plan on converting to Mormonism... you are going to have to get a divorce before you can get married."
Update: Apparently they were listed on Wikipedia as married all this time. Both Garofalo and Cohen thought it was a practical joke on them and not in any way true.
-Via The Week