Quote from : The Titan's Curse Book

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!