“If I couldn't trust her, I couldn't trust anyone.”

“Mrs. O' Leary is my pet. I couldn't let you stick a sword in her rump, now, could I? That might've scared her.”

“I couldn't help thinking about my dream, with Annabeth crumpled and lifeless in Luke's arms. Here I was rescuing baby monsters, but I couldn't save my friend.”

“You mean a bad heel?" I said. "Couldn't I just, like, wear something besides sandals? No offense." -Percy”

“Once I got over the fact that my Latin teacher was a horse, we had a nice tour, though I was careful not to walk behind him. I'd done pooper-scooper patrol in the Macy's Thanksgiving Day Parade a few times, and, I'm sorry, I did not trust Chiron's back the the way I trusted his front. ”

“I hoped they couldn't run very fast with those stubby little legs and flippers, but they waddled along pretty well.”

“For what it’s worth: trust your feelings. I can’t promise that you’ll never get hurt again, but I can promise you the risk is worth it.”