Believe it or not, I once did a course on Ancient Humour (mostly Classical Greek stuff - at the time I was studying to be an archaeologist but life took me in a completely different direction). One style of humour was common back then now, was fart jokes. They show up in Aristophanes' comedy, The Frogs. The slave asks his master should he tell the usual jokes. His master says no and then the slave says, what about __insert joke here__ . The slave ends up going through the whole list and of course by mentioning them, he ends up telling the jokes anyways. We also covered the humour that was in The Odyssey. Fun stuff (pun slightly intended).