Crash, fall down, I'll wrap my arms around you

This is a commission for tinygorilla (sorry you had to wait so long )

Title's from Crash by You Me At Six

Here's the lovely scene from DH:

"Don't!" squealed Hermione. Startled, Harry looked over just in time to see her burst into tears over her copy of Spellman's Syllabary.
"Oh no," said Harry, struggling to get up from the old camp bed. "Hermione, I wasn't trying to upset -"
But with a great creaking of rusty bedsprings, Ron bounded off the bed and got there first. One arm around Hermione, he fished in his jeans pocket and withdrew a revolting-looking handkerchief that he had used to clean out the oven earlier. Hastily pulling out his wand, he pointed it at the rag and said, "Tergeo."
The wand siphoned off most of the grease. Looking rather pleased with himself, Ron handed the slightly smoking handkerchief to Hermione.
"Oh... thanks, Ron... I'm sorry..." She blew her nose and hiccuped. "It's just so awful, isn't it? R-right after Dumbledore... I j-just never imagined Mad-Eye dying, somehow, he seemed so tough!"
"Yeah, I know," said Ron, giving her a squeeze. "But you know what he'd say to us if he was here?"
"'C-constant vigilance,'" said Hermione, mopping her eyes.
"That's right," said Ron, nodding. "He'd tell us to learn from what happened to him. And what I've learned is not to trust that cowardly little squit, Mundungus."
Hermione gave a shaky laugh and leaned forward to pick up two more books.

- Chapter 6, U.S. 94
Quote Source