From the "WTF?!?!" files
Apparently a woman in Britain decided to inseminate herself with sperm from a used condom while her partner was taking a post-nookie shower. British courts ruled that the unwitting father has to pay child support (to the tune of appx. $650 American per month). Couldn't find a decent article, but you can listen to the radio show here (I got the other details from a message board, from people who have listened to the show - I don't want to take the chance of listening at work).