Sometimes at the bank I get a roll of dollar coins, which totals 25 all together. These days, most of them are presidential dollars, though some Sacagaweas and Susies are usually mixed in. Since the presidents after Garfield have relatively low mintage — Garfield had a total of 74.2 million from both mints, while Arthur had only about 10 million — it’s rare to see one of the later presidents. This week, a TR coin turned up (one of 9.2 million minted) in a roll. In worn condition. Odd.

“What’s syncopation?” Lilly asked recently. Being in band, I thought she’d know that. Maybe not. I learned about it in high school, but when she asked I realized I’d forgotten how to describe it. Just what YouTube is for: this is a lucid explanation, and he even makes Philip Glass a little more interesting.

In line at a grocery store the other day, a man behind me was carrying on a vigorous conversation on his phone. Nothing unusual about that anymore, unlike the day in 1989 when I saw a woman pull a brick of a phone from her purse at the McDonald’s that used to be on the Mag Mile and start talking into it. Overhearing one side of a call these days might even be annoying, depending on the conversation.

I couldn’t pin down his language. It didn’t quite sound like Russian, but it was some kind of Slavic tongue. Maybe Ukrainian. Anyway, he had a good voice, so I listened. There wasn’t much else to do in line anyway. Then I started to notice: talktalktalktalk OK talktalktalk OK talktalktalktalktalktalktalk OK talktalktalktalktalktalk OK.

I know OK is practically universal. (Or do the French resist?) That wasn’t a surprise. Still, I marveled that a bit of 1830s American slang, whose origin even now isn’t quite certain, has traveled so far. So naturally did he use the word, it might as well have been native from his point of view.

New fact for the day (a couple of weeks ago for me, when I learned it): Neil Diamond wrote “Red, Red Wine.” A strange notion at first, but then again he’s written other songs with an alcohol motif. Then I learned that that’s his actual birth name: Neil Diamond, son of Akeeba and Rose Diamond of Brooklyn. It always sounded like a stage name to me.

In Branson in 2012 I met a fellow whose act was a Neil Diamond impersonation (tribute, as they say). He had the enormous mane and the good looks of young Neil Diamond, but I didn’t get to hear whether he had similarly impressive pipes. I’d hope so.

The last episode of Mad Men is on Sunday. A lot of shows now have last episodes, so it isn’t quite like the novelty of watching the end of The Fugitive (which I don’t remember) or even, come to think of it, The Mary Tyler Moore Show (which I do). Here’s an interesting essay about final shows, though maybe covering something that doesn’t really deserve an essay, namely the last episode of Hogan’s Heroes.

Still, I’ll be watching Mad Men. If only to see whether Roger Sterling gets one more funny line or scene.