I confess, I have a huge personal space. I am unbelievably uncomfortable when strangers are too close to me. When I go to crowded places, I secretly wish I had a temporary restraining order for all the people around not to go within a 2-foot radius of me. My only haven is the escalator -- rainbow-colored or not. I have learned to wait 3 steps before I ride one so I can decide to move 2 steps forward if the person behind me gets on the escalator too close to me. The only problem is if he follows suit and takes 2 steps forward too. Sigh, if only everyone would use the arms-forward-raise-rule taught to us in gradeschool.