26/08/2012 05:04 BST | Updated 25/10/2012 06:12 BST

Have You Heard The One About The Rape Joke?

Viv Groskop: Offensive jokes? Don't get mad, get silly

Comedy should be able to talk about whatever it wants to talk about, however inappropriate

Have you heard the one about the rape joke? No, I don't want to tell it either. And I suspect you don't really want to hear it anyway. What does and doesn't make "acceptable" comedy has been the talk of the Edinburgh Fringe this week. If politicians are not allowed to talk about their understanding of what constitutes "legitimate" rape, then is it OK for comedians? Are there subjects that are so offensive you'd do better to steer clear of them?