No but seriously, what is the function of a rubber duck?
You spend another two hours speaking with Mr Weasley about other shapes of bath floatables ("Merlin's beard!!"), refrigerators, regional socket plugs, motorcycles, elevators, TVs and all sorts of muggle appliances!
You actually find it both very entertaining to see Mr Weasley so excited and eager to hear all of this, and reassuring that even though you might not know what half of the gadgets laying around the Burrow are meant to do, you at least can offer some sort of knowledge in return and feel less silly!
Your reading prompt!
Read a contemporary
(a book, comic, short story etc,
set in the real (muggle) world)