Percy was finally coming back to camp after a year of school. He was planning on proposing to Annabeth later that day, despite the fact that he was only 17. As soon as he returned to his cabin, he found a note. He read it. It said,
Dear Percy,
I know we've known each other for 5 years and that we've been dating for 1 of them, but we have to break up. Sorry!
Percy stormed over to the beach. He first cried a little, then sobbed uncontrollably, and then screamed in anger. The anger built up, and soon, he was floating into the air, surrounded by a green aura, with storms raging around him. The rain started to pick up, flooding the beach. The wind hammered against the cabins, and the waters of the ocean began crashing down in waves.
Then, logic and reality realised that such an amount of power could not be held by a mortal body, and Percy exploded, with all of the chaos settled by the camp's magic.
After the campers found the wreckage, they couldn't decide on who should clean up the mess, but eventually came to an agreement. The one who made the mess should clean it up.
And that, dear reader, is why there is a mop and bucket permanently placed on a rotting brown patch on the Camp Half-Blood beach.