When Joey Wheeler discovered he was a mutant, he had been younger than a teen; the age range that was theorized for when mutant powers surfaced. It had been after his parents divorced that things had begun to happen.
Like whenever he'd get angry the lights in school or at 'home' would flicker, or when he'd get frustrated and have trouble with his homework he would suddenly just know the answers.
It had started out like that with little things happening, but as he got older, his powers started acting up more depending on his mood. Lights would dim if he was sad or upset, they would get glaringly bright if he was happy-which rarely happened-and when he had entered high school, he had gotten into a fight and had gotten so mad that he was being suspended for two weeks that he made the entire school's powers generators go out-effectively letting the rest of the school be let out early. Why couldn't he have just been given in-school detention instead?
Being suspended wouldn't have bothered him if he was in another place and time, he was sure he would've welcomed it, but not in this time and place. He liked school; he was actually worth something here, or at least to the teachers, who would praise him on his work. He liked the praise, it felt nice to be acknowledged than be put down. It was sad for him to think that the person who acknowledged him the most was more of a father to him than his own father.
And on a more selfish note, being at school was really the only place where he could get away with spending hours at and away from his father.
It was also during his suspension that Joey discovered his most powerful ability yet.
And by his own account, his most terrifying.