I figured out the problem. 3rd time charm. The time change shift that just happened over the weekend (some might call it Daylight Saving, others call it absurd) has thrown off a regular movement of mine. In particular, the bowel movement. On most days, I will eat a snack, then eat another snack at work, and sometimes enjoy a cup of coffee. This morning coffee initiated a bathroom trip, and sure enough my body adjusted to that. But now, the time for bathroom is scheduled at the time I will be leaving for work, making the drive to work a gamble.
Work continued on.
In the evening, took care of things around the house. Pretty plain.