Change agent, humanitarian, and Lead SA executive, Catherine Constantinides joins Brent – along with DA city councillor, thought leader and change maker, David Potter. Then Pam Green pops in… Pam was driving to work one day when she noticed a beggar on the side of the road holding up a matric certificate. She stopped, chatted to him, and put the picture up on Facebook. The post went viral and Joseph’s life has completely changed since then.