Actually, I agree with you, Bel. Sorry, Jo, but while the construction of "mother-in-law" is a noun modified by an adjective, the whole shebang is one word albeit with two hyphens, and stands on its own as a noun. Ergo, it has to be mother-in-law's.

[Afterthought] Oh shit, I'm in the same country as her now. Why did I do it? Just how far is it from Wellingborough to Edinburgh anyway? I think I'll go and get lost in London tomorrow ...



The idiot also known as Capfka ...