What are the ducks doing behind the sofa??
Where else would you keep them, Sakar?
Did you miss someone misunderstanding the phrase'ducks behind the sofa'? It is a way of saying 'I'm going to hide down here', often used when watching the scary monster on Doctor Who, or having said something impertinent, to hide from the person you've just upset. But someone thought the ducks were of the feathered variety and did wonder 'What are the ducks doing behind the sofa??' and it's become a 'dark side' joke.