When I saw that little child rocking to and fro and nobody there to comfort it, I was told she did that to comfort herself. Since then, when I see a movie and someone doing exactly this, it is always proved right. A person in a stressful situation, trying to comfort himself.
When I now see a person doing this, I try to be in charge. It doesn’t matter who and why it is. It is just a more beautiful world if we care.
Die Symmetrie der Dinge 