Arthur has suffered from his past trauma where when he came home that day, he saw his family laying around. Blood splattered over the walls and the floor is full of blood. That's why he has a fear of Blood, hemophobia.
He was walking to the school hallway, he can hear the chaotic chatters of students past by, when he felt something dripping from his forehead.
He slowly touches it, "What is this?... It's so warm and wet..." A single drop of blood falls down the floor and he notices it. His eyes widened.
He screams causing everyone's ears perked up, "AAAAAAHHHHHH!"
"BLOOD!!! IT'S MY BLOOD!!!" His hands were full of blood as he sat to the ground, getting insane. The students and teachers were worried as they rush to his direction.
"AAAAAAHHHHHH! MAKE IT STOP!!! PLEASE MAKE IT STOP!!!"