Took advantage of a gap in the rain monsoon to take the dog out. As I got home, someone on a recumbent was coming up the road. Looked vaguely familiar, perhaps from David Martin's Snow Roads pictures.
Came back and took a look at the thread on here, and yes, I think it was xrtim.
(Leaving Perth, heading in the direction of Scone, Coupar Angus, Meigle, Forfar etc. about half an hour / 45 mins ago?)