On a rainy evening in March, a Russian man named Dimitry stumbled through the dark, looking for a hole in a fence. In a former life, Dimitry worked as a fitness trainer for cops and bureaucrats in St. Petersburg, so he figured he could jump the barrier - "Honestly, with the shape I'm in, it wouldn't be a problem." But he was less confident about landing cleanly on the jungle terrain on the other side. Better, he thought, to look for a break in the chain-link.