Shared space or contiguous bubbles? How do we carve out that peaceful haven in our hectic urban lives? Is he reading the news, or looking for the comics, or did he just find out his team is one game away from getting into the premier league? Are they truly sharing that armrest or is he doing the passive aggressive lean to get more on the one side, and the elbow push on the other? Or maybe he thinks she's cute? When we stay so tightly wrapped in our own bubbles we can miss so much...