Alas, today's tool is the tow truck. It was supposed to be the Ford F-350 Super Duty Diesel truck, which I was going to use to pick up a bunch of fencing and building supplies, and then use to deliver a sheep with a possible eye infection* to the vet. But, the darn thing wouldn't start. The starter would crank mightily, and every so often it would cough and deliver a cloud of smoke, but no go. The guy at the shop said it sounds like fuel injectors, but we'll get the diagnosis tomorrow.
The sheep was also to be diagnosed tomorrow; I was to bundle her into the back of the truck (which has a topper) and have her visit the vet. I called the vet, and explained the situation. I might be able to come by in the afternoon, if the truck were healed by then. Or, the vet might have to go out to make a house call. "So," said the receptionist "until then, we don't know whether we're coming or going."
That's about right for all of us today.
*The real doctor is unfortunately out of town. What timing!