Arthur Weasley sat on the floor of the Gryffindor Common Room, twirling a rubber duck in his hands with a textbook open in front of him. His brow furrowed and he flipped through the pages, looking distraught. Molly sat in a squashed armchair, writing her Potion's essay, glancing at Arthur every now and then. She bit her lip and stifled a laugh as he squeezed the rubber duck and it made a loud sound and he jumped back in shock. Arthur looked up to see Molly laughing slightly and turned red and grumbled, "Good going Weasley, making a fool out of yourself in front of Prewett."
He really had a thing for Molly, and now he was so embarrassed, he picked up his stuff and ran up the boys' dormitories. But he had gotten the wrong impression. As strange as Molly thought Arthur's obsession was with muggle objects, she found him playing around with the rubber duck extremely adorable.