Let's face it, we've all heard people making fun of disability. Some comedians even make a habit of making disabled people the butt of cruel, thoughtless jokes. It's not that we can't joke about the subject, but the challenge is to get people to think, to consider the point that comedians are trying to make - the reality behind the humour.
Richard Herring explained to me yesterday: "I was told I couldn't use the words 'dick' and 'fuckinghamshire' in the 40 words. I wasn't too surprised about the 'fuckinghamshire' ("honourable member for fuckinghamshire" was the line) even though that isn't a swear word and presumably means you have to censor 'Scunthorpe' too.