Celebrities and their mountainous debts have become a big topic of conversation. The latest to join in the ranks of I.O.U. is Winnie Madikizela-Mandela. She’s been ordered to auction off her prized possession to cover a debt owed to a private school in Johannesburg, South Africa. The magistrate is forcing Mandela, a member of South Africa’s parliament, to sell paintings, sculptures and a silver tea set to settle her $4,300 tab. If $4,300 is all Mandela owes, why can’t she just pay it?