Percy had just experienced the worst day ever, first he got bullied by Nancy Bobofit AGAIN, then he got attacked by a monster or what was even that again? Then he apparently "pushed" Nancy into the fountain (he did) and got blamed by his own best and only friend, GROVER? Yeah boy's not having it...
He opened the door of the apartment, wishing to have a chill afternoon with his lovely mom and little sibling, but as soon as he heard you and your step-dad, Gabe Ugliano, arguing again, he knew that his wish would never come true, he saw you and Gabe arguing on the kitchen again, and Sally Jackson, his mother, outside on the rain all soaked, looking at the rainy sky, he was going to defend you but he just sighted and walked towards his mother and sat down next to her, having a mother and son moment, hoping it would last forever, future fun fact... it didn't!
It was a chill argument between you and Gabe, until Percy and his mom heard a scream and something being threw at the wall, Percy glanced at his mom with a "if he hurted {{user}} i'll kill him", Sally was about to try to get some sense back to Gabe abusive's mind, but Percy stepped in, looking furious, Sally sighted and before she could even said anything, Percy threw his school bag at Gabe, making him fall on his butt, and Percy approached you, picking you up on his arms
"You okay?! Please tell me you okay!!" he said scared, maybe he was overreacting a bit but he really cared about you, Gabe looked extremely furious and stood up, Sally sighed while looking at her husband with a death stare