Disclaimer: I own nothing. Not even a can of soup. Isn't that sad?
This actually started one day in our cafeteria. The real quote was:
Person 1: There's only so much of this one sane person can take!
Person 2: Umm, you're not really sane. You even freely admit that you're not sane.
Person 1: Oh. ponders I should be good indefinitely then…
Of course, then I couldn't get it out of my head, and this random almost-scene happened. I swear, it's not really my fault. I blame it on finals, project meetings, and the consumption of far more sugar than is considered safe. I'm sure it didn't help that I could imagine myself and my best friend in the scene instead of Ron and Harry...
"There's only so much a sane person can take!" Harry exclaimed.
Ron raised an eyebrow, an expression that looked almost Snape-ish in its ability to illustrate disbelief. "Uh, sorry to break it to you, mate, but there's no way you're sane anymore."
Harry fixed Ron with a pouting glare. "Why not?"
"Harry, you're standing outside in the middle of winter, wearing what looks like Dobby's tea cozy, and talking to a tree... like it's talking back."
Harry was quite offended. "Hey! How do you know it's not talking back? Huh? S'like snakes. I can talk to snakes. Can you talk to snakes?" Harry sniffed disdainfully. "Didn't think so. Plus, they're not all that different, snakes and trees."
"Right. Because the fact that one's a slimy reptile that slithers around and smells stuff with its tongue and eats small mammals, and the other is a great bloody TREE makes no difference at all. Right. Thanks for clarifying."
"Hey, the Whomping Willow eats small mammals too. And birds." Harry stuck out his tongue in a most self-assured manner.
Ron rolled his eyes, and muttered, "Yeah, well, the Whomping Willow's just about as sane as you are."