Guess not this evening, then

M&D rang from the car this morning to say that they were on their way up to see friends at northerm destinations unspecified, but would be calling in on me somewhen. Exact timing is unspecified, but has at least been narrowed down to 'some time in the next two or three days'.

Not heard from them since, so maybe it'll be tomorrow.

Or, then again, maybe not.