I watched the video with interest and would like to pass along a piece of advice given to me by my husband years ago. He came from another part of the Caribbean where ( not so jokingly) the national pastime is referred to as "choke and rob", with tourists and locals alike being relieved of valuables regularly. In the many places we visited, he always reminded me to carry my purse/bag/whatever on the side of my body that was away from the road. i.e. if the road and passing traffic was on my left, my purse was on my right side. I notice that the man in the video has his bag on the arm closest to the road, making it easier for a passing cyclist to grab.