Anyway, he turned the domain over to me last month, and I thought I could do something with it eventually - and much to my surprise, it appears to have a TBPR of 5 already, with no backlinks or anything. That doesn't seem right. Possibly it's just a PR glitch, although I've checked it several times over the past couple weeks, from several different places, and it always reports as PR5.
How weird is that?
I suspect it's a glitch that will disappear with the next TBPR, and I don't really care all that much, except that it's a mystery. But heck, if it stays PR5, I might move something on to it.