Trains are good places to observe humans. It becomes wonderfully apparent that human beings really are like animals. I don't mean that in a monstrous sense, I simply mean that we respond to stimulus. On a peak hour train, nothing happens. So nobody does anything. People sit, stand, stare, read, listen to music. Train people look like the living dead. Humans, like most animals, don't do anything until prompted somehow to do so. Eg - I'm hungry, so I eat. I am pushed, so I move. Human reactions might be a little more complex than most animal ones, because we have a wider range of stimuli. Ours include emotions and other intangible things, more than just hunger or being tired or having an urge to mate. My action of blogging is triggered by a few conditions: I am bored, I want to remember my current train (haha pun) of thought, I want to see what other people think of it, I want to make contact with people. On the other hand, if I get up to go to the toilet, it's only for one reason: I drank too much tea. As usual. Animals don't blog because animals don't have opposable thumbs and can't type. Also because an animal's thought process doesn't run to the analytical.