A woman in a wheelchair was knitting a scarf with blunt-tipped plastic needles. The scarf seemed to go on for yards and yards, changing colors and folding itself into piles in her lap before disappearing into a large floral-patterned handbag on the floor beside her. She plowed on with competent, listless movements, not even looking at her needles as she knit. A scarf for a giant, or a scarf for nobody.