Blakeman: You're afraid. A Slitheen girl your age would do it. Wouldn't think twice. But all the fight's gone out of you. You just stand there shaking in your shoes. That's why we survive. That's why you're losers. All of you on this rubbish planet. That's why we win! (Maria throws vinegar over him)
Blakeman: (He groans) Oops! (He explodes covering Clyde and Maria in green goo)
Clyde Langer: Oh great!
Maria Jackson: I did it I exploded the headmaster.
Luke: Sarah Jane I've done something really stupid. A really bad social mistake. I told the Slitheen how to destroy the world.