Yesterday I was stuck behind a very fast walking woman… who was walking her dog. She’d slow down to nothing when the dog needed to sniff something, then speed way up when the dog was done. Her v(max) was higher than mine, but her v(min) was zero, leading to a v(mean) that was slightly slower than mine. So, I’d keep on catching up to her and having to wait until her dog was done sniffing at something. But her dog didn’t take enough time to justify my walking around her.