I do an awful lot of scuba diving. I love to be on the ocean, under the ocean. I live next to the ocean.
Jim Thompson understood something about the serial killer before the psychology caught up to it, which is that they are detached to it and they do want to get caught.
When you write down your ideas you automatically focus your full attention on them. Few if any of us can write one thought and think another at the same time. Thus a pencil and paper make excellent concentration tools.