Well, if the Dunnett Carnival of Venice ever gets of the ground (um, wrong metaphor there, I suspect) you can talk about the crusades - but not *all you want*! And the audience will be permitted to leave. And you'll probably have to mention in passing that crusade where the stuff got nicked from Alexandria. But you can wittily and informatively entertain us about Baldwin & Richard & Saladin & the Lusignans & Co. btw, have you ever seen the musical 'Blondel'. Set in 1189.