Why so long between the event (30th March) and the blog entry (18th April, see
below)? Well, I had tried to use Mail-to-Blogger feature, but I hadn't checked
the checkbox labelled 'Publish' (which reads as though it's about publishing the
'secret' Mail-to-Blogger email address, not the posts themselves) and my post
got lost. As Blogging is not the be-all and end-all of my life I was content to
leave it lost for couple of weeks, but now I've found the problem. The
undocumented 'Publish' checkbox.