His girlfriend Liu Yu-chien is also a practicing martial artist, and when they go out they often spar. And it's real sparring: she has knocked him to the ground on many an occasion!
由於女友劉羽倩也是習武者，兩人約會時習慣先過招，而且是玩真的──女友曾使力一摔，讓他當場倒地！