" The throne rumbled. A wave of gale-force anger slammed into me.
WHO DARES-
The voice stopped abruptly, The anger retreated, which was a good thing, because just those two words had almost blasted my mind to shreds.
Percy. My fathers voice was still angry but more controlled. What-exactly-are you doing on my throne?
"I'm sorry, Father," I said. "I needed to get your attention."
This was a very dangerous thing to do. Even for you. If I hadn't looked before I blasted, you would now be a puddle of seawater. "

― Rick Riordan , The Last Olympian (Percy Jackson and the Olympians, #5)