It's always said about a joke: you had to be there. So can Renaissance humour thrive in the 21st Century? Literature and comedy from 1500-1700 comes under scrutiny at a conference at the University of Leicester, where experts will gather to ponder ribticklers such as early Tudor (or should that be toilet?) humour. Dr Sarah Knight, a lecture in Renaissance Literature and one of the organisers of the conference, explains the appeal of Elizabethan and Jacobean humour.