I was fairly lethally tired, but also desperate for a swim! I always think, as someone who has taken to this stuff relatively recently, that a week or ten days of no swimming or running will lead to me having completely forgotten how to do it & being set back to square one...
(Also did not want to have first swim back after a minor layoff be a full-on practice tomorrow - much better to ease back into it!)
Well, I did not forget how to swim, but I did forget how to do any sort of organized workout in a crowded lane with many wayward swimmers and a high irk factor on my part!
c. 40 mins., c. 1800 yards (mostly free, some stroke where I could fit it in without risking collision or even higher irk - NO WHIMSICAL U-TURNS IN THE MIDDLE OF THE LANE!)