People do the same things. The instincts of fishermen find identical paths upstream through the river — watery trails lead to the best water with the greatest efficiency. You can easily see where everybody else fishes. And I guess the flies and tippet-tangles in streamside branches signal that we all make the same casting errors too. Presented with the same problems, fishermen come up with the same solutions, and we make the same mistakes.
That’s all pretty harmless and kind of fascinating. But then there’s that thing we (all) do where we leave our rod on top of the vehicle and drive away. WTF?