(Bloomberg) -- Fung, a 24-year-old doctor, seems an unlikely candidate to stand on the front line of Hong Kong’s most violent civil unrest in half a century. Before this year, he never took part in a protest, and during Hong Kong’s last major pro-democracy uprising, the 2014 Umbrella Movement, he only stopped by to take photos.Now, Fung is part of a cell of 20 protesters who face off each weekend against police on the streets of Hong Kong in clashes that have escalated from peaceful marches to flying bricks, tear gas, Molotov cocktails and, more recently, live ammunition fired into the sky. Fung, who acquired bullet-resistant body armor to wear under his black T-shirt, says the violence needs to escalate even further if protesters are to persuade Hong Kong Chief Executive Carrie Lam -- and her backers in Beijing -- to accede to their demands.“If you can’t give pressure to police, the police won’t give any stress to Carrie Lam,” Fung said in an interview in his home. “We, the frontliner...