 In 1986 the first director, Su Rui-ping, had to step down after she had eliminated the installation of artist Zhang Jianfu from an "experimental" exhibition with her own feet, and in 1985 had a red metal sculpture called "Unlimited Minimalism" of Li Zai-qian repainted in silver.As a form of late justice, in 2006 a red sculpture called "Homerun" was permanently installed on the plaza facing the main entrance.In 1988 performance artist Lee Ming-Sheng was beaten up by museum guards when he brought a glass of his feces to a public discussion during the "World of Dada" exhibition, which also featured Duchamp's famous urinal.