For his annual checkup.
The vet is in Janesville, on the far south side, so the ride there takes a minute or two—(continued below the photo).

About a mile from the office Pax began acting squirrely, and started panting and shaking. Then, when I pulled up to the building and opened the door to get out, Pax slipped past and lit out for the territories (actually across a big field). That’s when things became difficult for him—my shouts of “wait” met up with his experience of “vet.”
Noble being that he is, my wishes eventually superseded his wishes, and we came together. But from there back to the vet’s office I pretty much had to carry the poor guy. And that was not all that easy on this old guy.
Still and all, Pax is in fine fettle—sound of mind and body—with excellent ears, eyes, and teeth (and everything else), and almost right at his target weight.
All afternoon he as been demonstrably contrite for his attempted escape.

I do love that dog.