Two words: Heather Mills.
One would think that after bilking Paul McCartney out of nine figures, the digger of gold would inspire every rich person on Earth to make an aspiring spouse ink a prenup.
But Amy Winehouse didn't take this to heart.
Reports out of the UK say that the singer and Lily Allen rival, who wed Blake Fielder-Civil in Miami last Friday, ignored the advice of family and friends and refused to draw up a deal to protect her fortune should the couple split.
Now friends claim Blake Fielder-Civil, a music video assistant, has been boasting about his refusal to sign any such agreement.
A source told Britain's The Sun newspaper: "Blake has been singing, â€˜They tried to make me sign a prenup, but I said no, no, no', to the tune of her hit â€˜Rehab'. Some people worry he is only after her money."
Come on, Amy. Tom Cruise is insane, and Katie Holmes was already loaded - and even he insisted she sign a deal to safeguard his cash.
The couple - who got engaged only last month - tied the knot in a secret ceremony at Miami's Shore Club hotel, followed by a poolside reception.
Amy wore a short floral-patterned sundress for the surprise wedding, while Blake wore a 50s-style grey suit.
Amy's spokesperson confirmed the wedding, saying:
"Amy and Blake got married on Friday. They are both very happy."
The couple rekindled their romance in April following a split in 2006 and got engaged after an alcohol-fueled night out.
Sounds like something straight out of Britney Spears' playbook.
Amy previously revealed: "He proposed at home and I took a day to finally agree. Obviously we are both young and it is frightening. But it is the right thing to do. That is why I agreed."