C had had at least one per year for the past several years, and each time remembered the one before, so I had thought that one would be fine too - but it wasn't. "Something developmental" I suppose. (When he was 3, he astonished the nurse by insisting on sitting in his own chair, not on my lap, and holding quite still for his flu vaccination with no fuss, saying afterwards that he'd hardly felt it.) The one before the one where he freaked had been his pre-school ones; maybe those are more painful, and that's what set him off. Dunno.

I'm of the opinion that children should have annual flu vaccinations, and that the fact that the NHS doesn't offer them is a bug in the system. Today is probably not the day to try convincing you of that, though!