Why is stein,s bolt so big- over compensation.

"Excuse me, Sid-Sensei?" Asked Hiro as he raised his hand so that the zombie could see him.

"What is it gaki?" Sid replied in his usual gruff manor.

"Uh...um me and Excalibur were just talking about Stein-Sensei the other day and were wondering if there was a reason he's always going around on a swirly chair?" Next to him Excalbur was waving his cane in the air to get the dead teacher's attention.

Excalibur jumped on top of the table as he shouted "YES I TO WOULD ALSO LIKE TO KNOW AS TO WHY HE HAS A LARGE BOLT IN HIS HEAD?" Excalibur shouted in his usual over zealous self.

"The bolt just proves that he's just over compensating for something that he doesn't have." Sid replied with eyes closed, hoping that that was all he needed to say in front of his students, but he was so wrong as Hiro raised his hand again.

With a sigh the zombie teacher asked him what he wanted.

"You never said why Dr. Stein always moves around on a swirly chair."

"Well me and Medusa-Sensei believe that he's only sitting on it the way he does all the time because he's hiding what he doesn't have."