I ran my short route again today on account of the -1° temperature, but the whole experience was coloured by my tweaked left knee. I didn’t notice an uneven step, a skid or a wobble — just, about a quarter mile into my run I felt my knee twinging with each step. I slowed down to a walk, tried to let the knee reset itself, and picked up the pace again, but the twinge kept coming back. I walked, then ran a few steps, then walked, then ran, the rest of my route till the knee started behaving again. Home, coffee and fruit, now off to Morning Prayer.