Keeper Liu Tsu-yuan says that four years ago when Foster first arrived, he would cover himself completely in hempen bags, and habitually spent all day staring at the wall, unwilling to make any contact with the outside world.
負責照養的劉祖源表示，「弗斯特」4 年前剛來時，會用麻袋將自己整個套住，還習慣整天面向牆壁、完全不願意接觸外面的世界。