Mondays with decent weather mean one thing: a walk to my favorite local spot, BeanStalk Coffee on Main Street here in Norman, Oklahoma. I cut through the brisk wind, navigate the crosswalks with my cane tapping the way, and arrive around 8 AM feeling accomplished. I order my usual drip coffee (the barista kindly brews a fresh batch when it’s low), grab it when it’s ready, and head outside to a bench a few hundred feet away. Coffee in one hand, I settle in, pull out my iPhone, and start scrolling through Instagram the way I always do. That’s when it happened. A guy approaches, big smile on his face,…