Brian’s taller than I am, and he has a longer gait, so when we walk, I feel like I have to continuously catch up to him. I get a little in front of him, and he sees me walking faster than he is, so he starts to speed up. That forces me to speed up to catch up to him, but that only makes him go faster. Our pace gets into a kind of feedback loop and we go faster and faster. I guess I’ll just have to keep the pace at a comfy saunter, and if he takes off on his giraffe legs, I’ll see him later.