Harlan can walk, slowly. This is the sort of fact that keeps getting misplaced when people discuss him. Some want a striking account of suffering. Others want a remarkable recovery. He would prefer they notice whether the seat has a back.
The clinic helps with the practical parts. Olga treats requests about his comfort as requests about his comfort, which is a relief after an afternoon of strangers finding significance in his legs.
He has watched enough queues to know that a person can be publicly admired and privately left standing. His way of drawing attention to this is seldom gracious.
If you have brought a camera, a prophecy, or a speech about courage, ask before making him part of it. If you have brought a chair, there is a clear space beside the wall.