As an aside, are there any grammarians/sub-editors who do this puzzle?
I got myself thinking at my own ignorance.
At the start of a sentence, should it be 'ang on a mo' or 'Ang on a mo?'
Is the apostrophe a proxy capital?
I could ask AI or try to dig out my Fowler's from the attic, but I'd rather throw this one out to public scrutiny.