Boris Johnson 
This forum member remembers my favourite sketch better than I do:
Spitting image told that joke when they had it in for Gerald Kauffman, depicting him as a certain Dr Lecter
Neil Kinnock, "Look Gerald, you're far too creepy, you're going to have to learn a joke to soften your image so you don't frighten away supporters"
Gerald Kauffman, "I know one: I say, I say, I say, my dog's got no nose"
Neil Kinnock, "Your dog's got no nose, how does it smell?"
Gerald Kauffman, "It can't; I sliced it off"
Neil Kinnock running away Arrrrrrrrgh!!!!!
Imagine what they could do with Iain Duncan Smith 