Here's a public alert for all you whole-wheat bread bakers out there:
You can add eight cups of liquid ingredients instead of 10, and your bread will still turn out fine!
Apparently I am not as good at multi-tasking as I thought. Tsk. Wondered why the dough was so stiff, but didn't twig into the reason till it was rising already. That's when I noticed the two cups of liquid still in the measuring cup on the window sill, where I had set it to settle "all the better to eyeball the water level" while doing something else. And forgetting all about it.
Just one more example of why I never leave the room when there is a tap running.
Note added next morning: Normally to toast my bread, you have to put it down twice if you want it nicely browned. Not when you've shorted the liquid, though! One time does the trick.