The subway station nearby where I work is often populated by people who cannot for the life of them swipe a Metrocard. When I see a line of people three or more longer at the turnstiles, I assess their approximate Metrocard swiping ability and if I deem it insufficient I keep on walking towards the larger bank of turnstiles. Even when I end up getting to the other side at the same time as the bad Metrocard swiper I still feel justified because waiting and watching someone attempt to get through is an excruciating form of pain that I don’t feel I need ever put myself through.