"Yeah, I'm pretty much done," he says after I ask him how the straightening up of the displays is going.
I already checked, of course, and he's nowhere near done, but rather than say that, I just say, "Cool! Let's go meet by the far wall and go through it together."
And he doesn't say, "Oh, wait, let me check that," or "Was I supposed to do that too?" (which I would have accepted as self-preservation, even though it's still a little sneaky), but just meets me where I said, where I proceed to show him all of the things that still need doing, to which he responds with slow, sullen indifference.