"We swerved into a ditch. Our driver's side doors were wedged in the mud. The roof had cracked open like an eggshell and rain was pouring in." Page 47-48. Chapter 4. The minotaur smashed their car and they were thrown into a ditch. Percy, Grover and Sally were stuck in the car.
character vs technology
"Because you don't want me around?' I regretted the words as soon as they were out." Page 39. Percy felt guilty after asking a question he shouldn't have about why his mom was sending him away to the camps.
Character vs society
"My head smacked against a rock." Page 55. Chapter 4. Percy grabs onto the minotaurs head and gets shaken off. He hits his head against the rock. Which then messes his thinking up.
character vs character
"There was a huge grinding noise under our feet. Black smoke poured from the dashboard and the whole bus filled with a smell like rotten eggs." Page 25 Chapter 2. The bus driver is struggling to fix the bus, and he can't get it to work.
"Or I could defend myself against half the Ares cabin." Page 39. Chapter 3. In the game of capture the flag, Percy was placed as border patrol, and had to fight against half of the Ares cabin.
"Water shot out of toilet, making an ark straight over my head, and the next thing I knew, I was sprawled on the bathroom tiles with Clarisse screaming behind me." Page 91. Chapter 6. As she tried to push Percy into the toilet, the plumbing went weird and attacked Clarisse. Which we later find out, he causes it.