 Christine Gregory. Beautiful, smart, kind. I quickly calculate trajectories and modulate my pace so that I'll arrive when she arrives. I'll open the door for her. We'll get to talking. It's going to be great. Good plan. Then, out of the periphery of my vision, coming from the other direction, I spy this guy, Harold. Harold sees me. Harold sees Christine. He's thinking, if I'm slick, I'm going to bump into Christine first before that fool does.