As the possibility of soggy sheets came clear to Lucy, she realized that this could become a bigger mess than she originally imagined. Of course, she had a feeling the house elves could fix everything in due time but what a task that would be for them! She tapped her foot against the now wet floors, a small puddle splashing as she did so.
"It seems this might have been meant for Filch, anyway," Lucy mused aloud. "And besides, that wouldn't be very nice. I doubt Mrs. Norris would like the rain very much."
Just the thought of the old, mangled cat stuck in the rain was enough to cause Lucy to laugh.