When Kung was in fifth grade, his father cosigned a loan for a friend who then defaulted on his payments. That meant that the family could lose their house, the only asset they had that could pay off the loan.
國小五年級時，原本在農會任職的父親，因幫朋友擔保被倒，房子遭查封，每天在債主上門索債的驚嚇中度過。