Chicago's public transit offers two random, magical elf-related experiences: shaking hands with Rahm Emmanuel, and riding the holiday train. Want to celebrate a season when, at any moment, your dreary commute could be replaced with 300 tons of pure Christmas enchantment? Then check out the Christmas edition of "El Stories," a well-received series of theatre pieces drawn from real life on the CTA. Previous editions have focused on the Red and Brown lines, but we're childishly excited about the show's repeat ride with Santa.