In Manuel, supra, the Fifth Circuit Court of
holding that a purchasemoney security interest did not lose its character as such for purposes of lien avoidance when debtor and creditor effected a novation of the loan agreement holding that consideration for guaranty of loan previously made was that guarantors friend the bank manager who issued the loan would not lose his job for making a bad loan holding that the creditor did not satisfy the foregoing requirement because it was trying to exercise the avoidance power for itself as a sole creditor not for the benefit of the debtors estate or the creditors as a whole holding that where a security agreement contained collateral other than collateral for which creditor advanced funds to debtor since it secured antecedent debts as well as new debt and the agreement provided that the security interest secured payment and performance of the debtors present and future debts to the creditor the creditor did not have a pmsi and the debtors could avoid the creditors lien on collateral claimed as exempt holding that the debtor must pay the government interest at the rate the debtor would pay a commercial lender for a loan of equivalent amount and duration considering the risk of default and any security