But just run that quote of mine from Fowler through the Google toolbar spellchecker that tend to come with Firefox, and you'll see what I mean.

And I think that though Fowler there had "St James's" you won't find that too often when it comes to people singing "St James' infirmary". Not anywhere.

Every rule they come up with, there's going to be an exception turn up. That's what makes it an interesting language. Well, one reason anyway.