Nutty -- you are, of course, quite right. I had forgotten one verse and never knew one of the others.

Fidjit -- Sometimes I wonder myself which Barrie Roberts this is! You can find edited highlights of my horrid career at www.barrieroberts.com. I don't think I ever taught 'Guy Fawkes' to a bloke who worked boats from Southampton to S.Africa, but perhaps my memory's failing.