[Sheldon has been sent to the principal's office for talking back to his science teacher. He's waiting in the principal's secretary's office while she talks to Principal Petersen]
Principal Petersen: Does he know I'm in here?
Sheldon: [over PA] Attention students and faculty:
Principal Petersen: Oh, no!
Sheldon: This is Sheldon Lee Cooper.
Principal Petersen: [jiggling his office doorknob, but it won't open. Sheldon has jammed it with a chair from the other side] What the hell!
Sheldon: We're taught that hard work pays off, but that's not true. I came up with a solution to save Earth from killer asteroids. And lost the science fair to Sue Ann Ludlow and her frizzy hair machine.
[cut to Sue Ann in class, looking confused]
Sheldon: But it wasn't just me who lost. We all lost. Wake up people! The system's broken!
[cut to his brother, Georgie, looking embarrassed, in class]
Sheldon: Real innovation isn't valued. Nowadays, it's all about flash and style. I blame MTV. Luckily, my parents can't afford cable.
George Sr.: [cut to Sheldon's father, George Sr., in a hallway] I can afford it.
Sheldon: [cut to principal's office, where Petersen is climbing out of his window to get to the secretary's office] I urge you all to rise up! They can't send everyone to the principal's office! Chew gum in class! Use a #1 pencil! Go nuts!
Sheldon: [Principal Petersen is climbing in through the secretary's office window] This is Sheldon Lee Cooper, signing off! Live long and prosper!
[runs out of office]
Principal Petersen: You'd better run, you little punk!