We were talking, as we seem to, about language. Zee wondered why hair is singular, though there are lots of them. This isn’t the case in other languages, like French, where they quite cheerfully say ‘I washed my cheveux’. If you say that in English, it sounds a bit risqué. I pointed out that there is a number of these sorts of confusion.
On my way back here through the drizzle and tyre spray, I reflected that I used to wonder whether I was the only one who did that. Now I know I’m not. There are at least two of us. And there is a pair.