At a doctoral graduation ceremony in the Hong Kong Polytechnic University (PolyU) on October 27, two students wore masks walking on the stage. The president Teng Jinguang refused to shake hands with them. Netizens said that such behavior was disrespectful to the teachers. Teng hopes that all parties express their views with respect and a rational attitude, accommodate different viewpoints, and respect the rights of others when fulfilling their obligations.