"No! No, no, no, no, no, no, no!"

"What?"

"Can you believe it? Only 85! Only 85%. And I studied so hard!"

Toph sighed exasperatedly.

"Kat, 85 is fine. I only got 73.5% and do you see me complaining?"

Katara glared at her.

"That's because the last test we had, you failed"

Toph shrugged.

"Still, I wouldn't have cared if I'd got, like, 64%"

"Liar"

Toph stood up and stretched.

"Well, the bell's rung and it's lunchtime. Let's get the hell outta here"

Katara gathered up her stuff and followed her best friend out of the classroom. At the lockers, they met Zuko and Sokka. Both of them were grinning, which was unusual, slightly strange, and never a good sign. Katara looked at them apprehensively.

"Well? What have you two idiots done this time?"

Sokka sniggered.

Zuko punched him on the shoulder, fighting to keep a straight face.

"You know how today is 'tea day' at the cafeteria?"

"Yeah…"

"Well, I'd keep away from the tea"

"What."

"Let's just say that, ahem, we'll be seeing some funny behaviour in the teachers for the rest of the day"

"Sokka! What'd you do?"

Sokka gave a snort of mirth, seemingly unable to control his laughter anymore, and doubled over, his body wracked with laughter. Zuko gave a bark of laughter, quickly controlled his laughing fit, and then said

"Cactus juice"

Katara's mouth fell open in shock, just as Aang walked over to them, grinning.

"What's the matter, Kat?"

Without waiting for an answer, he turned to Sokka.

"Bumi is currently prancing around the cafeteria, singing that song from 'Love amongst the dragons'. In minor"

Zuko finally surrendered to his laughter, and collapsed on all fours, laughing like he never had in all his four years of high school. Sokka used Zuko's back to help himself up, wiping tears from his eyes. He high fived Aang, still grinning.

"Biggest prank ever, achieved"

Katara closed her mouth, still appalled.

"You spiked their tea… with cactus juice?"

"Yep!"

Katara gave a small snort of laughter. Sokka stared at her.

"You… you're not mad?"

Katara arched an eyebrow.

"That makes me sound like your mother. No, I'm not mad. In fact…."

She winked at Aang.

"Don't we have Zhao after general? That ought to be good"

Aang shook his head.

"Oh spirits… I don't think I've ever been this keen for lunch to end"

"Why don't we go and sit down with Suki and Yue? They always make lunch pass extremely quickly… for some of us"

Toph said, shooting a sly glance at Sokka. He blushed.

"Come on guys, let's go"