Grabbed a random ball of yarn and needles and went with him to his doctor appointment, started another hat in the waiting room, got home, picked up the afghan, and now the third side of the edging is done.
All that is left is to rib out–now there was a Freudian slipstitch of a typo, as I decide to leave it there–the too-white beginning edge of the lesser-cashmere-content yarn. I finally no longer have live stitches elsewhere to worry about. Umpteen stitches, eleven rows.
So close.