Who knew a DART Train day pass could lead to some of the best people-watching ever? Each stop, no matter how seemingly jejune, is never short of top-notch fascinations, whether it's the opportunity to smell the breakfast of a woman with the smallest feet you've ever seen on an adult or feel the tweed fibers of a well-dressed academic type on your arm as you're squeezed uncomfortably together during rush hour. You'll get a small sample of what it's like to walk in someone else's shoes, if only for a stop or two.