Glass was a student at Springdale High School whose his teachers always harped on him to achieve his full potential instead of being a class clown.
He graduated, became a teacher himself and then returned to Springdale High to teach the pupils science. Simultaneously he started to work on his plans against the teachers of Springdale High.
Glass trapped himself in an elevator with an elastic cable to distract the police and others from his plans. Only a short time after this occurred Mrs. Bundy nearly drowned in ink and Ms. Crocker's home economics lesson was flooded with dough.
Another teacher went insane after chewing on his pen, but the police and Principal Winters remained clueless as to who was behind all these incidents. A short time later Mr. Winters found out who was behind the incidents when the Class Clown hunted him down the street. Speedball tried to help Winters, but Class Clown trapped him in a growing spit ball and then tried to kill Winters with exploding rubber bands. Speedball saved Winters and Class Clown escaped through a chalk-dustcloud he produced with sponges when the police arrived at the scene. The next day Mr. Glass officially returned to school with a neck brace and an arm in a cast. He gave an inspiring speech to the students and told them about his past. A mass of exploding paper planes came down from the ceiling and Glass went backstage were he became Class Clown again. He tried to kill Winters again by chocking him with strings for the game "Cat's Cradle". Speedball once again saved Winters and after a hard fight the Class Clown was defeated and unmasked by the Masked Marvel. Glass got his ear tweaked by Mr. Winters and now he was really sorry for his doings.