Here's a little public service announcement with a lot to unpack. Fatbergs are horrifying agglomerations of grease, excrement and fiber clogging the waterworks beneath our cities. Britain's ancient sewers seem especially vulnerable, providing an endless stream of "thousand-foot fatberg removed" stories, complete with nightmarish footage of yet another London lard shoggoth. Flushed wet-wipes are a key cause of the problem, as they do not break down and instead become fatberg rebar.
Hence the need for Andy Serkis to play a talking anus in an anti-fatberg PSA, begging Britons to stop flushing wet-wipes.