This wasn't a great day. My left knee has been irritating me all day, I assume that the weekend walks were too much for it. The lateral part of quadriceps insertion seemed to be the focus but it was generally unpleasant.
After walking home I was undecided on whether to try a short run or not. No; it hurts already. Yes; different shoes, different gait, different loading. I did go out and had no problems although it didn't feel as trouble-free as last week.