Given the recent startling revelations regarding the PMs past, how will he handle his speech? When addressing large audiences, people are told to visualise everyone naked. However when Dave hits the stage everyone will be visualising him being thoroughly inappropriate with a dead pig. Psychologically that must be tough for him and could put him on the back foot causing him to fluff his lines. Will he in turn try to visualise them in similar necrophiliac and/or bestial exertions? Or perhaps a combination of drugs and hypnosis?