The rope ties his wife – she works with him, she is also a diver for the police. She checks the knot, tightens it, and then everything happens quickly. A little later, Johan Potgieter, 55, is hanging under a helicopter. Below him: a brown river with plenty of crocodiles in it. “I was just attached to this rope,” he tells the STANDARD. “If that had broken, there would have been only one direction – down.” He has a good marriage, he jokes.