For some, the universal language isn't love, mathematics, or money. It's caffeine. Pure and simple. Indeed, getting a morning cup of coffee is a cherished daily ritual the world over. But while travelling this custom can become both an adventure and an ordeal. More often than not the desire for a fix, coupled with the exchange of money, can overcome any cultural or language obstacles...but then sometimes you find yourself at a train station in Berlin, Germany on a cold winter morning.