I've just eaten one from the fridge
I haven't had one for years but it looks really small compared to how I remember them
(
Boris Johnson's Press Secretary, Sun 17 May 2009, 0:14,
archived)
I happen to be eating one now
and I don't think they're any smaller
(
Jadeviper was still alive on, Sun 17 May 2009, 0:23,
archived)