And adaptable for any pair of politicians..on which subject.... David Cameron is doing a photo-call at a school and he asks the children what is a tragedy?...one little girl puts her hand up and says "If my best friend was playing in the garden and a car ran up the pavement and she was killed would that be a tragedy?" "No" says Cameron, "That would be an accident" The kids think on and then one says "I've got it! If a bus with lots of people on it went over a cliff and they were all killed, would that be a tragedy?" Cameron says "It would be a great loss but it wouldn't be a tragedy" So the kids are sitting there and Cameron's starting to get a bit annoyed with them when a little boys jumps up and says "If you and Nick Clegg and all your cabinet were in a plane! And when the plane was really high in the sky it went bang and burst into flames and you were all killed! Would that be tragedy?" "Well done!" says Cameron "That would be a tragedy! Very clever! How did you work that out?" And the kid replies:...... "'Cos my dad says if that happened it wouldn't be an accident and it wouldn't be a great loss"