Ron shifted back with a scowl and watched as Hermione set to work. "Right, you have at it then Miss Know-It-All." He folded his arms over his chest and huffed a little, blowing some of the bangs away from his eyes as he did so. Merlin, if Mum were here she'd be all over me with a pair of shears right about now, Ron thought to himself as he glared off at Hermione, who was busying herself at the door.
When Hermione failed to open the door with magic, Ron reached over and pushed her back in the same manner in which she had done with him earlier. "Right then. Magic won't work. Let's try something else." At that, he raised his leg up and gave the door a sharp kick. Once, twice, three times.
The door barely budged.
He threw his hands up in the air, nearly hitting Hermione in face (what with the lack of space and all) and turned back to face the door. "I'M GOING TO KILL YOU, LILY. YOU THINK YOU-KNOW-WHO IS SCARY? OOH NO. YOU'VE SEEN NOTHING YET."