 In Hong Kong, Sun introduced him to Yau Lit and Yeung Hok-ling.The four frequently met at Yeung Yiu Kee (楊耀記), Yeung's family shop at 24 Gough Street, to discuss a revolution against the Qing Dynasty, and were collectively called the Four Bandits by their neighbours.As Sun began his commitment to revolution upon graduation, Chan dropped out of the medical school to follow him.