Everything should be taken with a pinch of salt when it comes to comedians, that's a given. But Rosie Jones recently went too far after an utterly vile joke at the expense of none other than David Attenborough. If there was ever someone to not touch with a 10ft pole, it's the national treasure that is Sir David. Now, don't get me wrong, one thing that is typically great about comedians is that they offer a no-holds-barred approach to life and use humour in any circumstances. But sometimes, they do go too far, and this is one of those occasions....