Duncan spent 20 1 1 in his spare time thinking about what he should do after retiring from the NBA. Every time I go to the team's training hall, I pass a warehouse, in the same direction as Duncan's house. If only the warehouse were empty. Then one day, the warehouse was finally empty. Duncan received a phone call from a friend telling him the news, so Duncan decided to take the warehouse.

Duncan got his driver's license in his sophomore year, and he really got his first car in his senior year. After that, Duncan became a car enthusiast. After several years of consideration, Duncan and Jason, a veteran of the automobile industry, decided to set up a car modification company, so this warehouse became Duncan's car modification shop. Now that he has retired, Duncan can hardly help living there every day. Duncan thinks this store is proud of its present size.

Recently, Duncan also printed a tattoo on his back with the theme of "mechanical spirit" because of his love for automobile machinery. The original clown tattoo was also covered.