Humanity's greatest achievement will come when the happiness of some will no longer be the sadness of others.
Many divorces are not really the result of irreparable injury but involve, instead, a desire on the part of the man or woman to shatter the setup, start out from scratch alone, and make life work for them all over again. They want the risk of disaster, want to touch bottom, see where bottom is, and, coming up, to breathe the air with relief and relish again.
Animals used to provide a lowlife way to kill and get away with it, as they do still, but, more intriguingly, for some people they are an aperture through which wounds drain. The scapegoat of olden times, driven off for the bystanders sins, has become a tender thing, a running injury. There, running away is me: hurt it and you are hurting me.
If a walker is indeed an individualist there is nowhere he can't go at dawn and not many places he can't go at noon. But just as it demeans life to live alongside a great river you can no longer swim in or drink from, to be crowded into safer areas and hours takes much of the gloss off walking -- one sport you shouldn't have to reserve a time and a court for.