So. Spaced emdashes, spaced endashes or unspaced emdashes to separate thoughts in sentences – like this – is my evening’s dilemma. Not the question of whether Mill made a substantial contribution to ethics; no, tonight we have TYPOGRAPHY.

The three variants:

1. This is — a spaced emdash
2. Here is a—unspaced emdash
3. Here is – a spaced endash

And the issues:

• The first option is non-standard.
• The second option is the standard American English.
• The third option is the standard for British English.

My dilemma is: I like emdashes and want to use them, but I speak and write British English. Further, if I adopt option 3 (as seems likely), shall I still allow myself spaced emdashes in such as titles?