A second activist pleaded not guilty to a charge of acting in a disorderly manner following an alleged assault on Chief Executive Donald Tsang Yam-kuen at a protest. Raphael Wong Ho-ming's appearance in Kowloon City Court yesterday follows one by fellow activist Steve Wong Chun-kit, who pleaded not guilty on Wednesday to the same charge. Both took part in a protest outside the Museum of History on March 1 where the chief executive and his entourage attended a ceremony for the opening of a new exhibition. In court, Raphael Wong (pictured), a member of the League of Social Democrats, said: 'Chief Executive Donald Tsang is a thug. This political prosecution is a disgrace.' The prosecution alleged that Wong, 22, dropped a lunch box to the ground at the concourse of the museum, then grabbed rice off the ground and held it as though he intended to throw it. Outside court, he said that just because he was holding a lunch box at a protest did not mean that he was going to throw it at anyone. 'To say that such an act was a breach of the peace is detestable.' The prosecution also alleged that as a result of the actions of Raphael Wong and other protesters, there were concerns for the chief executive's safety. Steve Wong's lawyers said on Wednesday that they may summon Tsang to give evidence in court - a possibility that Raphael Wong also did not rule out. Both activists will appear in court on May 30. The two were granted bail of HK$500 each.