Sir Paul McCartney has been labelled "idiotic" by property tycoon Donald Trump for not writing up a prenuptial agreement before marrying Heather Mills. Twice-divorced Trump, who married for the third time to model MELANIA KNAUSS in January (05), has criticised MCCartney for allowing romance to cloud his judgement, insisting business should always come before love. He says, "I know I sound like a broken record, but get a prenup. I don't care how much you love your fiancee, it's just idiotic to get married without one. "Don't believe me? Ask Paul MCCartney what he thinks. I know he wishes he had one." MCCartney and Mills separated in May (06) and are currently in the process of getting a divorce.