A tall man got out of a black car and walked briskly across the school parking lot.

Inside the school, Liz was waiting for him, and when she saw her father, she muttered.

"I didn't do anything!"

Aaron took a deep breath, took Liz by the hand and quietly said.

"Then why did the head master call me and say that you blew up the toilet in the school bathroom?"

His voice was quiet, but with a hint of irritation. Raising his head, he notices another student, about the same age as Liz, sitting on the detention couches.