Sam

“Monkey bar," Annabeth said. "I'm great at these." She leaped onto to the first rung and start swinging her way across. She was scared of tiny spiders, but not of plummeting to her death from a set of monkey bars. Go figure.”
― Rick Riordan, The Battle of the Labyrinth

“Thalia's shoulders relaxed. "I owe you one."
"Two."
"One and a half," Thalia said.
She smiled, and for a second, I remembered that I actually liked her when she wasn't yelling at me.”
― Rick Riordan, The Titan’s Curse

“Argh!" Thalia pushed me, and a shock went through my body that blew me backward ten feet into the water. Some of the campers gasped. A couple of the Hunters stifled laughs.
"Sorry!" Thalia said, turning pale. "I didn't mean to—"
Anger roared in my ears. A wave erupted from the creek, blasting into Thalia's face and dousing her from head to toe.
I stood up. "Yeah," I growled. "I didn't mean to, either."
Thalia was breathing heavily.
"Enough!" Chiron ordered.
But Thalia held out her spear. "You want some, Seaweed Brain?"
Somehow, it was okay when Annabeth called me that — at least, I'd gotten used to it — but hearing it from Thalia was not cool.
"Bring it on, Pinecone Face!”
― Rick Riordan, The Titan’s Curse

“Remind me again-why do you hate me so much?"

I don't hate you."

Could've fooled me."

She folded her cap of invisibility. "Look...we're just not supposed to get along, okay? Our parents are rivals."

Why?"

She sighed. "How many reasons do you want? One time my mom caught Poseidon with his girlfriend in Athena's temple, which is hugely disrespectful. Another time, Athena and Poseidon competed to be the patron god for the city of Athens. Your dad created some stupid saltwater spring for his gift. My mom created the olive tree. The people saw that her gift was better, so they named the city after her."

They must really like olives."

Oh, forget it."

Now, if she'd invented pizza-that I could understand.”
― Rick Riordan, The Lightning Thief